diff --git a/.env.example b/.env.example
index d33989a..e8fd832 100644
--- a/.env.example
+++ b/.env.example
@@ -10,6 +10,11 @@ LLM_API_BASE=https://api.deepseek.com/v1
 # Examples: deepseek-chat, gpt-4o-mini, gemini-1.5-flash
 LLM_MODEL=deepseek-chat
 
+# Embedding Model Settings (OpenAI-compatible endpoints, falls back to LLM keys if unspecified)
+EMBEDDING_API_KEY=your_embedding_api_key_here
+EMBEDDING_API_BASE=https://api.openai.com/v1
+EMBEDDING_MODEL=text-embedding-3-small
+
 # Qiniu Cloud Storage Config (For hosting PDF-extracted layout images)
 QINIU_AK=your_qiniu_access_key_here
 QINIU_SK=your_qiniu_secret_key_here
diff --git a/Cargo.lock b/Cargo.lock
index 037ca6f..452fd13 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -287,6 +287,24 @@ dependencies = [
  "syn 2.0.117",
 ]
 
+[[package]]
+name = "bindgen"
+version = "0.72.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "993776b509cfb49c750f11b8f07a46fa23e0a1386ffc01fb1e7d343efc387895"
+dependencies = [
+ "bitflags",
+ "cexpr",
+ "clang-sys",
+ "itertools",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "rustc-hash",
+ "shlex 1.3.0",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "bit-set"
 version = "0.8.0"
@@ -363,6 +381,31 @@ dependencies = [
  "alloc-stdlib",
 ]
 
+[[package]]
+name = "btls"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c5e60b8c8d282c86360cab651ded04ab0335a7b5390c8d34145cbeab8cacf5f"
+dependencies = [
+ "bitflags",
+ "btls-sys",
+ "foreign-types",
+ "libc",
+ "openssl-macros",
+]
+
+[[package]]
+name = "btls-sys"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b1b8638a2e1c38a5ae4efa90ae57e643baec35a30d03fc5b399b893adc4954b"
+dependencies = [
+ "bindgen 0.72.1",
+ "cmake",
+ "fs_extra",
+ "fslock",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.20.3"
@@ -484,6 +527,15 @@ dependencies = [
  "libloading",
 ]
 
+[[package]]
+name = "cmake"
+version = "0.1.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0f78a02292a74a88ac736019ab962ece0bc380e3f977bf72e376c5d78ff0678"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "cmov"
 version = "0.5.4"
@@ -571,26 +623,6 @@ dependencies = [
  "url",
 ]
 
-[[package]]
-name = "core-foundation"
-version = "0.9.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
-[[package]]
-name = "core-foundation"
-version = "0.10.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2a6cd9ae233e7f62ba4e9353e81a88df7fc8a5987b8d445b4d90c879bd156f6"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
 [[package]]
 name = "core-foundation-sys"
 version = "0.8.7"
@@ -1047,19 +1079,37 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
 
 [[package]]
-name = "foreign-types"
-version = "0.3.2"
+name = "foldhash"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+checksum = "77ce24cb58228fbb8aa041425bb1050850ac19177686ea6e0f41a70416f56fdb"
+
+[[package]]
+name = "foreign-types"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d737d9aa519fb7b749cbc3b962edcf310a8dd1f4b67c91c4f83975dbdd17d965"
 dependencies = [
+ "foreign-types-macros",
  "foreign-types-shared",
 ]
 
 [[package]]
-name = "foreign-types-shared"
-version = "0.1.1"
+name = "foreign-types-macros"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+checksum = "1a5c6c585bc94aaf2c7b51dd4c2ba22680844aba4c687be581871a6f518c5742"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa9a19cbb55df58761df49b23516a86d432839add4af60fc256da840f66ed35b"
 
 [[package]]
 name = "form_urlencoded"
@@ -1070,6 +1120,12 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "fs_extra"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"
+
 [[package]]
 name = "fslock"
 version = "0.2.1"
@@ -1271,25 +1327,6 @@ dependencies = [
  "crc32fast",
 ]
 
-[[package]]
-name = "h2"
-version = "0.4.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "171fefbc92fe4a4de27e0698d6a5b392d6a0e333506bc49133760b3bcf948733"
-dependencies = [
- "atomic-waker",
- "bytes",
- "fnv",
- "futures-core",
- "futures-sink",
- "http",
- "indexmap",
- "slab",
- "tokio",
- "tokio-util",
- "tracing",
-]
-
 [[package]]
 name = "hashbrown"
 version = "0.14.5"
@@ -1306,7 +1343,7 @@ version = "0.15.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
 dependencies = [
- "foldhash",
+ "foldhash 0.1.5",
 ]
 
 [[package]]
@@ -1314,6 +1351,11 @@ name = "hashbrown"
 version = "0.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed5909b6e89a2db4456e54cd5f673791d7eca6732202bbf2a9cc504fe2f9b84a"
+dependencies = [
+ "allocator-api2",
+ "equivalent",
+ "foldhash 0.2.0",
+]
 
 [[package]]
 name = "hashlink"
@@ -1460,6 +1502,25 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9171a2ea8a68358193d15dd5d70c1c10a2afc3e7e4c5bc92bc9f025cebd7359c"
 
+[[package]]
+name = "http2"
+version = "0.5.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "569ef7a780e853c4e1768f58a3c8168193b82cdcbab66638a0b1c6583ec5995e"
+dependencies = [
+ "atomic-waker",
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "http",
+ "indexmap",
+ "slab",
+ "smallvec",
+ "tokio",
+ "tokio-util",
+]
+
 [[package]]
 name = "httparse"
 version = "1.10.1"
@@ -1491,7 +1552,6 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-core",
- "h2",
  "http",
  "http-body",
  "httparse",
@@ -1519,22 +1579,6 @@ dependencies = [
  "webpki-roots 1.0.7",
 ]
 
-[[package]]
-name = "hyper-tls"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70206fc6890eaca9fde8a0bf71caa2ddfc9fe045ac9e5c70df101a7dbde866e0"
-dependencies = [
- "bytes",
- "http-body-util",
- "hyper",
- "hyper-util",
- "native-tls",
- "tokio",
- "tokio-native-tls",
- "tower-service",
-]
-
 [[package]]
 name = "hyper-util"
 version = "0.1.20"
@@ -1553,11 +1597,9 @@ dependencies = [
  "percent-encoding",
  "pin-project-lite",
  "socket2",
- "system-configuration",
  "tokio",
  "tower-service",
  "tracing",
- "windows-registry",
 ]
 
 [[package]]
@@ -1910,6 +1952,15 @@ version = "0.4.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "953f07c43838f8e6f9758cab68bf5bed85465e7587ebe0b823f1bcd81978ad3a"
 
+[[package]]
+name = "lru"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a860605968fce16869fd239cf4237a82f3ac470723415db603b0e8b6c8d4fb9"
+dependencies = [
+ "hashbrown 0.17.1",
+]
+
 [[package]]
 name = "lru-slab"
 version = "0.1.2"
@@ -2073,23 +2124,6 @@ dependencies = [
  "version_check",
 ]
 
-[[package]]
-name = "native-tls"
-version = "0.2.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "465500e14ea162429d264d44189adc38b199b62b1c21eea9f69e4b73cb03bbf2"
-dependencies = [
- "libc",
- "log",
- "openssl",
- "openssl-probe",
- "openssl-sys",
- "schannel",
- "security-framework",
- "security-framework-sys",
- "tempfile",
-]
-
 [[package]]
 name = "new_debug_unreachable"
 version = "1.0.6"
@@ -2245,6 +2279,8 @@ dependencies = [
  "tokio",
  "tracing",
  "url",
+ "wreq",
+ "wreq-util",
 ]
 
 [[package]]
@@ -2253,20 +2289,6 @@ version = "1.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
 
-[[package]]
-name = "openssl"
-version = "0.10.80"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a45fa2aa886c42762255da344f0a0d313e254066c46aad76f300c3d3da62d967"
-dependencies = [
- "bitflags",
- "cfg-if",
- "foreign-types",
- "libc",
- "openssl-macros",
- "openssl-sys",
-]
-
 [[package]]
 name = "openssl-macros"
 version = "0.1.1"
@@ -2278,24 +2300,6 @@ dependencies = [
  "syn 2.0.117",
 ]
 
-[[package]]
-name = "openssl-probe"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c87def4c32ab89d880effc9e097653c8da5d6ef28e6b539d313baaacfbafcbe"
-
-[[package]]
-name = "openssl-sys"
-version = "0.9.116"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f28a22dc7140cda5f096e5e7724a6962ca81a7f8bfd2979f9b18c11af56318c4"
-dependencies = [
- "cc",
- "libc",
- "pkg-config",
- "vcpkg",
-]
-
 [[package]]
 name = "outref"
 version = "0.5.2"
@@ -2769,22 +2773,17 @@ dependencies = [
  "bytes",
  "cookie",
  "cookie_store",
- "encoding_rs",
  "futures-core",
  "futures-util",
- "h2",
  "http",
  "http-body",
  "http-body-util",
  "hyper",
  "hyper-rustls",
- "hyper-tls",
  "hyper-util",
  "js-sys",
  "log",
- "mime",
  "mime_guess",
- "native-tls",
  "percent-encoding",
  "pin-project-lite",
  "quinn",
@@ -2795,7 +2794,6 @@ dependencies = [
  "serde_urlencoded",
  "sync_wrapper",
  "tokio",
- "tokio-native-tls",
  "tokio-rustls",
  "tokio-util",
  "tower",
@@ -2961,15 +2959,6 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "schannel"
-version = "0.1.29"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91c1b7e4904c873ef0710c1f407dde2e6287de2bebc1bbbf7d430bb7cbffd939"
-dependencies = [
- "windows-sys 0.61.2",
-]
-
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
@@ -2986,29 +2975,6 @@ dependencies = [
  "untrusted",
 ]
 
-[[package]]
-name = "security-framework"
-version = "3.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7f4bc775c73d9a02cde8bf7b2ec4c9d12743edf609006c7facc23998404cd1d"
-dependencies = [
- "bitflags",
- "core-foundation 0.10.1",
- "core-foundation-sys",
- "libc",
- "security-framework-sys",
-]
-
-[[package]]
-name = "security-framework-sys"
-version = "2.17.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ce2691df843ecc5d231c0b14ece2acc3efb62c0a398c7e1d875f3983ce020e3"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
 [[package]]
 name = "selectors"
 version = "0.26.0"
@@ -3640,27 +3606,6 @@ dependencies = [
  "syn 2.0.117",
 ]
 
-[[package]]
-name = "system-configuration"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a13f3d0daba03132c0aa9767f98351b3488edc2c100cda2d2ec2b04f3d8d3c8b"
-dependencies = [
- "bitflags",
- "core-foundation 0.9.4",
- "system-configuration-sys",
-]
-
-[[package]]
-name = "system-configuration-sys"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e1d1b10ced5ca923a1fcb8d03e96b8d3268065d724548c0211415ff6ac6bac4"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
 [[package]]
 name = "tap"
 version = "1.0.1"
@@ -3814,6 +3759,16 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "tokio-btls"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e1fd638ec35427faf3b8f412e0fdd6fae76591d79dba40f38fa667d22bc44dd"
+dependencies = [
+ "btls",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-macros"
 version = "2.7.0"
@@ -3825,16 +3780,6 @@ dependencies = [
  "syn 2.0.117",
 ]
 
-[[package]]
-name = "tokio-native-tls"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
-dependencies = [
- "native-tls",
- "tokio",
-]
-
 [[package]]
 name = "tokio-rustls"
 version = "0.26.4"
@@ -3845,6 +3790,18 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tokio-socks"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7e2948f60dbe26b35f2c7fb74ac2854c1fddded0fe9d7548fcc674a246f7615"
+dependencies = [
+ "either",
+ "futures-util",
+ "thiserror 1.0.69",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-stream"
 version = "0.1.18"
@@ -4039,6 +3996,26 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 
+[[package]]
+name = "typed-builder"
+version = "0.23.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "31aa81521b70f94402501d848ccc0ecaa8f93c8eb6999eb9747e72287757ffda"
+dependencies = [
+ "typed-builder-macro",
+]
+
+[[package]]
+name = "typed-builder-macro"
+version = "0.23.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "076a02dc54dd46795c2e9c8282ed40bcfb1e22747e955de9389a1de28190fb26"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "typed-path"
 version = "0.12.3"
@@ -4162,7 +4139,7 @@ version = "137.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "33995a1fee055ff743281cde33a41f0d618ee0bdbe8bdf6859e11864499c2595"
 dependencies = [
- "bindgen",
+ "bindgen 0.71.1",
  "bitflags",
  "fslock",
  "gzip-header",
@@ -4377,6 +4354,15 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "webpki-root-certs"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f31141ce3fc3e300ae89b78c0dd67f9708061d1d2eda54b8209346fd6be9a92c"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "webpki-roots"
 version = "0.25.4"
@@ -4486,17 +4472,6 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
 
-[[package]]
-name = "windows-registry"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02752bf7fbdcce7f2a27a742f798510f3e5ad88dbe84871e5168e2120c3d5720"
-dependencies = [
- "windows-link",
- "windows-result",
- "windows-strings",
-]
-
 [[package]]
 name = "windows-result"
 version = "0.4.1"
@@ -4763,6 +4738,81 @@ dependencies = [
  "wasmparser",
 ]
 
+[[package]]
+name = "wreq"
+version = "6.0.0-rc.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f0eba5f5814a94e5f1a99156f187133464e525b66bdbc69a9627d46530af2e1"
+dependencies = [
+ "btls",
+ "btls-sys",
+ "bytes",
+ "futures-util",
+ "http",
+ "http-body",
+ "http-body-util",
+ "http2",
+ "httparse",
+ "ipnet",
+ "libc",
+ "lru",
+ "percent-encoding",
+ "pin-project-lite",
+ "socket2",
+ "tokio",
+ "tokio-btls",
+ "tokio-socks",
+ "tower",
+ "url",
+ "webpki-root-certs",
+ "wreq-proto",
+ "wreq-rt",
+]
+
+[[package]]
+name = "wreq-proto"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a43942f024bb303f1042c9aa3c87fa1d9149f507c65db6e5220a11ccdb207387"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "http",
+ "http-body",
+ "http2",
+ "httparse",
+ "pin-project-lite",
+ "smallvec",
+ "tokio",
+ "tokio-util",
+ "want",
+]
+
+[[package]]
+name = "wreq-rt"
+version = "0.2.2-rc.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99e9bce67a3fa3dd3f1503f066d86661c9caf399a763d3bd184da7afaf886c8b"
+dependencies = [
+ "pin-project-lite",
+ "tokio",
+ "wreq-proto",
+]
+
+[[package]]
+name = "wreq-util"
+version = "3.0.0-rc.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baa5d2ab72139256916ca352a3d05c53d74e1dd360052eb5ba7691033c417c65"
+dependencies = [
+ "brotli",
+ "flate2",
+ "typed-builder",
+ "wreq",
+ "zstd",
+]
+
 [[package]]
 name = "writeable"
 version = "0.6.3"
diff --git a/Cargo.toml b/Cargo.toml
index afccf14..01f12bd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ tower-http = { version = "0.5", features = ["cors", "fs", "trace"] }
 sqlx = { version = "0.7", features = ["runtime-tokio-rustls", "sqlite", "chrono", "json"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-reqwest = { version = "0.12", features = ["json", "stream", "multipart", "cookies"] }
+reqwest = { version = "0.12", default-features = false, features = ["json", "stream", "multipart", "cookies", "rustls-tls"] }
 dotenvy = "0.15"
 quick-xml = { version = "0.31", features = ["serialize"] }
 anyhow = "1.0"
@@ -50,7 +50,7 @@ obscura-net = { path = "libs/obscura/crates/obscura-net", optional = true }
 
 [features]
 default = []
-obscura-inprocess = ["dep:obscura-browser", "dep:obscura-net"]
+obscura-inprocess = ["dep:obscura-browser", "dep:obscura-net", "obscura-browser/stealth", "obscura-net/stealth"]
 
 [profile.release-min]
 inherits = "release"
diff --git a/bin/obscura b/bin/obscura
index 2f53321..2737a0e 100755
Binary files a/bin/obscura and b/bin/obscura differ
diff --git a/bin/obscura-worker b/bin/obscura-worker
index 0e7a04e..4ec20a4 100755
Binary files a/bin/obscura-worker and b/bin/obscura-worker differ
diff --git a/dashboard/src/App.tsx b/dashboard/src/App.tsx
index 5f244a0..0c0a2e9 100644
--- a/dashboard/src/App.tsx
+++ b/dashboard/src/App.tsx
@@ -1,7 +1,7 @@
 // dashboard/src/App.tsx
 import { useState, useEffect, useCallback } from 'react';
 import axios from 'axios';
-import { Loader, Download } from 'lucide-react';
+import { Loader, Download, BookOpen, GitFork, RefreshCw, AlertTriangle } from 'lucide-react';
 import { Sidebar } from './components/layout/Sidebar';
 import { SearchPanel, getDoctypeBadge } from './features/search/SearchPanel';
 import { LibraryPanel } from './features/library/LibraryPanel';
@@ -431,7 +431,9 @@ export default function App() {
       <main className="flex-1 flex flex-col overflow-hidden relative">
         {/* 选项卡容器 */}
         <div className="flex-1 overflow-y-auto p-4 sm:p-6 md:p-8 relative z-10 w-full flex flex-col">
-          <div className="w-full max-w-7xl mx-auto flex-1 flex flex-col min-h-0">
+          <div className={`w-full flex-1 flex flex-col min-h-0 ${
+            (activeTab === 'reader' || activeTab === 'citation') ? 'max-w-none' : 'max-w-7xl mx-auto'
+          }`}>
             {activeTab === 'search' && (
               <SearchPanel 
                 searchQuery={searchQuery}
@@ -473,42 +475,78 @@ export default function App() {
               />
             )}
 
-            {activeTab === 'reader' && selectedPaper && (
-              <ReaderPanel 
-                selectedPaper={selectedPaper}
-                parsing={parsing}
-                handleParse={handleParse}
-                translating={translating}
-                handleTranslate={handleTranslate}
-                showNotesPanel={showNotesPanel}
-                setShowNotesPanel={setShowNotesPanel}
-                notes={notes}
-                englishText={englishText}
-                chineseText={chineseText}
-                handleTextSelection={handleTextSelection}
-                selectedParagraphIdx={selectedParagraphIdx}
-                setSelectedParagraphIdx={setSelectedParagraphIdx}
-                selectedText={selectedText}
-                setSelectedText={setSelectedText}
-                newNoteColor={newNoteColor}
-                setNewNoteColor={setNewNoteColor}
-                newNoteText={newNoteText}
-                setNewNoteText={setNewNoteText}
-                handleCreateNote={handleCreateNote}
-                handleDeleteNote={handleDeleteNote}
-                showConfirm={showConfirm}
-              />
+            {activeTab === 'reader' && (
+              selectedPaper ? (
+                <ReaderPanel 
+                  selectedPaper={selectedPaper}
+                  parsing={parsing}
+                  handleParse={handleParse}
+                  translating={translating}
+                  handleTranslate={handleTranslate}
+                  showNotesPanel={showNotesPanel}
+                  setShowNotesPanel={setShowNotesPanel}
+                  notes={notes}
+                  englishText={englishText}
+                  chineseText={chineseText}
+                  handleTextSelection={handleTextSelection}
+                  selectedParagraphIdx={selectedParagraphIdx}
+                  setSelectedParagraphIdx={setSelectedParagraphIdx}
+                  selectedText={selectedText}
+                  setSelectedText={setSelectedText}
+                  newNoteColor={newNoteColor}
+                  setNewNoteColor={setNewNoteColor}
+                  newNoteText={newNoteText}
+                  setNewNoteText={setNewNoteText}
+                  handleCreateNote={handleCreateNote}
+                  handleDeleteNote={handleDeleteNote}
+                  showConfirm={showConfirm}
+                />
+              ) : (
+                <div className="w-full flex-1 flex flex-col items-center justify-center p-12 bg-white rounded-2xl border border-slate-200 shadow-xs min-h-[450px]">
+                  <div className="w-16 h-16 rounded-2xl bg-sky-50 border border-sky-100 flex items-center justify-center text-sky-600 mb-5 shadow-2xs">
+                    <BookOpen className="w-8 h-8" />
+                  </div>
+                  <h3 className="text-base font-bold text-slate-800 tracking-wide mb-2">未选定阅读文献</h3>
+                  <p className="text-xs text-slate-500 max-w-sm text-center leading-relaxed mb-6">
+                    双语对比阅读功能需要基于已下载的馆藏文献。请前往“馆藏管理”选择或上传一篇文献，然后开启沉浸式双语精读。
+                  </p>
+                  <button
+                    onClick={() => setActiveTab('library')}
+                    className="px-6 py-2.5 bg-sky-600 hover:bg-sky-700 text-white rounded-lg text-xs font-bold transition-all shadow-xs hover:shadow-md cursor-pointer hover:scale-102 active:scale-98"
+                  >
+                    选择文献
+                  </button>
+                </div>
+              )
             )}
 
             {activeTab === 'citation' && (
-              <CitationPanel 
-                selectedPaper={selectedPaper}
-                loadingCitations={loadingCitations}
-                citationNetwork={citationNetwork}
-                citationHistory={citationHistory}
-                loadCitations={loadCitations}
-                onUncachedClick={setUncachedBibcode}
-              />
+              selectedPaper ? (
+                <CitationPanel 
+                  selectedPaper={selectedPaper}
+                  loadingCitations={loadingCitations}
+                  citationNetwork={citationNetwork}
+                  citationHistory={citationHistory}
+                  loadCitations={loadCitations}
+                  onUncachedClick={setUncachedBibcode}
+                />
+              ) : (
+                <div className="w-full flex-1 flex flex-col items-center justify-center p-12 bg-white rounded-2xl border border-slate-200 shadow-xs min-h-[450px]">
+                  <div className="w-16 h-16 rounded-2xl bg-sky-50 border border-sky-100 flex items-center justify-center text-sky-600 mb-5 shadow-2xs">
+                    <GitFork className="w-8 h-8" />
+                  </div>
+                  <h3 className="text-base font-bold text-slate-800 tracking-wide mb-2">未选定中心文献</h3>
+                  <p className="text-xs text-slate-500 max-w-sm text-center leading-relaxed mb-6">
+                    引用星系拓扑图谱用于展示单篇文献的“引用 - 被引”星系脉络。请前往“馆藏管理”选择一篇文献并生成其引用图谱。
+                  </p>
+                  <button
+                    onClick={() => setActiveTab('library')}
+                    className="px-6 py-2.5 bg-sky-600 hover:bg-sky-700 text-white rounded-lg text-xs font-bold transition-all shadow-xs hover:shadow-md cursor-pointer hover:scale-102 active:scale-98"
+                  >
+                    选择文献
+                  </button>
+                </div>
+              )
             )}
 
             {activeTab === 'sync' && (
@@ -672,49 +710,58 @@ export default function App() {
             </div>
 
             {/* 详情内容 */}
-            <div className="space-y-4 max-h-[60vh] overflow-y-auto pr-1 text-xs scrollbar-thin">
+            <div className="space-y-4 h-[460px] flex flex-col overflow-y-auto pr-1 text-xs scrollbar-thin">
               {/* 作者 */}
-              <div className="space-y-1">
+              <div className="space-y-1 h-12 overflow-y-auto scrollbar-thin shrink-0">
                 <span className="text-slate-450 font-bold">作者列表</span>
                 <p className="text-slate-800 leading-relaxed font-semibold">{detailPaper.authors.join(', ')}</p>
               </div>
 
               {/* 期刊 & 年份 */}
-              <div className="grid grid-cols-2 gap-4 border-y border-slate-100 py-3">
-                <div className="space-y-1">
-                  <span className="text-slate-450 font-bold block">发表期刊</span>
-                  <span className="text-slate-800 font-bold italic">{detailPaper.pub_journal || '未标注'}</span>
+              <div className="grid grid-cols-5 gap-4 border-y border-slate-100 py-2.5 shrink-0 h-14">
+                <div className="space-y-0.5 flex flex-col justify-center min-w-0 col-span-4">
+                  <span className="text-slate-450 font-bold block text-[10px] leading-tight">发表期刊</span>
+                  <span 
+                    className="text-slate-800 font-bold italic truncate block text-[11px] leading-tight" 
+                    title={detailPaper.pub_journal || '未标注'}
+                  >
+                    {detailPaper.pub_journal || '未标注'}
+                  </span>
                 </div>
-                <div className="space-y-1">
-                  <span className="text-slate-450 font-bold block">发表年份</span>
-                  <span className="text-slate-850 font-extrabold">{detailPaper.year}</span>
+                <div className="space-y-0.5 flex flex-col justify-center col-span-1">
+                  <span className="text-slate-450 font-bold block text-[10px] leading-tight">发表年份</span>
+                  <span className="text-slate-850 font-extrabold block text-[11px] leading-tight">{detailPaper.year}</span>
                 </div>
               </div>
 
               {/* 摘要 */}
-              <div className="space-y-1.5">
+              <div className="space-y-1.5 flex flex-col h-40 shrink-0">
                 <span className="text-slate-450 font-bold block">摘要</span>
-                <p className="text-slate-700 leading-relaxed font-normal bg-slate-50 p-3.5 rounded-lg border border-slate-200 text-justify max-h-48 overflow-y-auto scrollbar-thin select-text">
+                <p className="text-slate-700 leading-relaxed font-normal bg-slate-50 p-3 flex-1 rounded-lg border border-slate-200 text-justify overflow-y-auto scrollbar-thin select-text">
                   {detailPaper.abstract_text || '该文献暂无摘要数据。'}
                 </p>
               </div>
 
               {/* 关键字 */}
-              {detailPaper.keywords && detailPaper.keywords.length > 0 && (
-                <div className="space-y-1.5">
-                  <span className="text-slate-450 font-bold block">关键词</span>
-                  <div className="flex flex-wrap gap-1.5">
+              <div className="space-y-1.5 flex flex-col h-16 shrink-0">
+                <span className="text-slate-450 font-bold block">关键词</span>
+                {detailPaper.keywords && detailPaper.keywords.length > 0 ? (
+                  <div className="flex flex-wrap gap-1.5 flex-1 content-start items-start overflow-y-auto scrollbar-thin pr-1">
                     {detailPaper.keywords.map(kw => (
                       <span key={kw} className="px-2 py-0.5 rounded bg-slate-100 border border-slate-200 text-slate-600 font-bold text-[9px]">
                         {kw}
                       </span>
                     ))}
                   </div>
-                </div>
-              )}
+                ) : (
+                  <div className="flex items-center justify-center flex-1 bg-slate-50 border border-slate-200 rounded-lg text-[10px] text-slate-400 font-bold select-none">
+                    暂无关键词
+                  </div>
+                )}
+              </div>
 
               {/* 标识符 */}
-              <div className="border-t border-slate-100 pt-3 grid grid-cols-1 sm:grid-cols-3 gap-2 text-[10px] font-mono">
+              <div className="border-t border-slate-100 pt-3 grid grid-cols-1 sm:grid-cols-3 gap-2 text-[10px] font-mono mt-auto shrink-0">
                 <div className="bg-slate-50 px-2.5 py-1.5 rounded border border-slate-150">
                   <span className="text-slate-400 font-bold block">BIBCODE</span>
                   <span className="text-slate-700 font-semibold select-all truncate block" title={detailPaper.bibcode === detailPaper.arxiv_id ? '暂无' : detailPaper.bibcode}>
@@ -765,8 +812,86 @@ export default function App() {
                 </div>
               </div>
 
+              {/* 手动上传文件（应对防爬阻断） */}
+              <div className="border-t border-slate-100 pt-3 space-y-2">
+                <div className="flex items-center justify-between">
+                  <span className="text-slate-450 font-bold block">手动离线上传文献</span>
+                  <span className="text-[9px] text-amber-700 font-bold bg-amber-50 px-2 py-0.5 rounded border border-amber-200">防爬/人机验证备用</span>
+                </div>
+                <p className="text-[10px] text-slate-450 leading-relaxed">
+                  若自动下载受阻，可在浏览器中打开上方链接，手动保存 PDF 或 HTML 后在此处上传覆盖。
+                </p>
+                <div className="grid grid-cols-2 gap-2">
+                  <div className="flex flex-col items-center justify-center border border-dashed border-slate-300 rounded-lg p-2 hover:bg-slate-50 transition-colors relative cursor-pointer group min-h-[50px]">
+                    <input
+                      type="file"
+                      accept="application/pdf"
+                      onChange={(e) => {
+                        const file = e.target.files?.[0];
+                        if (file) handleManualUpload(detailPaper.bibcode, 'pdf', file);
+                      }}
+                      className="absolute inset-0 opacity-0 cursor-pointer w-full h-full"
+                      disabled={uploadingBibcode === detailPaper.bibcode}
+                    />
+                    {detailPaper.has_pdf && (
+                      <span className="absolute top-1 right-1 text-[8px] font-bold text-emerald-600 bg-emerald-50 border border-emerald-200 px-1 py-0.2 rounded select-none pointer-events-none z-10">
+                        已下载
+                      </span>
+                    )}
+                    <span className="text-[10px] font-bold text-sky-600 group-hover:underline">
+                      {uploadingBibcode === detailPaper.bibcode ? '上传中...' : '上传 PDF 文献'}
+                    </span>
+                    <span className="text-[8px] text-slate-400">支持 .pdf 格式</span>
+                  </div>
+
+                  <div className="flex flex-col items-center justify-center border border-dashed border-slate-300 rounded-lg p-2 hover:bg-slate-50 transition-colors relative cursor-pointer group min-h-[50px]">
+                    <input
+                      type="file"
+                      accept="text/html,.html"
+                      onChange={(e) => {
+                        const file = e.target.files?.[0];
+                        if (file) handleManualUpload(detailPaper.bibcode, 'html', file);
+                      }}
+                      className="absolute inset-0 opacity-0 cursor-pointer w-full h-full"
+                      disabled={uploadingBibcode === detailPaper.bibcode}
+                    />
+                    {detailPaper.has_html && (
+                      <span className="absolute top-1 right-1 text-[8px] font-bold text-emerald-600 bg-emerald-50 border border-emerald-200 px-1 py-0.2 rounded select-none pointer-events-none z-10">
+                        已下载
+                      </span>
+                    )}
+                    <span className="text-[10px] font-bold text-sky-600 group-hover:underline">
+                      {uploadingBibcode === detailPaper.bibcode ? '上传中...' : '上传 HTML 文献'}
+                    </span>
+                    <span className="text-[8px] text-slate-400">支持 .html 格式</span>
+                  </div>
+                </div>
+
+                {!detailPaper.is_downloaded && (
+                  <div className="pt-1">
+                    {detailPaper.pdf_error === 'no_resource' && detailPaper.html_error === 'no_resource' ? (
+                      <button
+                        type="button"
+                        onClick={() => handleMarkNoResource(detailPaper.bibcode, true)}
+                        className="w-full py-2 bg-slate-100 hover:bg-slate-200 text-slate-700 rounded-lg text-[10px] font-bold transition-all border border-slate-250 cursor-pointer flex items-center justify-center gap-1.5"
+                      >
+                        <RefreshCw className="w-3 h-3" /> 恢复自动下载状态 (允许后续重新尝试)
+                      </button>
+                    ) : (
+                      <button
+                        type="button"
+                        onClick={() => handleMarkNoResource(detailPaper.bibcode, false)}
+                        className="w-full py-2 bg-slate-100 hover:bg-slate-200 text-slate-700 rounded-lg text-[10px] font-bold transition-all border border-slate-250 cursor-pointer flex items-center justify-center gap-1.5"
+                      >
+                        <AlertTriangle className="w-3 h-3 text-amber-500" /> 标记为“无有效全文资源” (排查后跳过重试)
+                      </button>
+                    )}
+                  </div>
+                )}
+              </div>
+
               {/* 自动下载失败诊断 */}
-              {(detailPaper.pdf_error || detailPaper.html_error) && (
+              {!detailPaper.is_downloaded && (detailPaper.pdf_error || detailPaper.html_error) && (
                 <div className={`rounded-lg p-3 text-[10px] space-y-1 ${
                   (detailPaper.pdf_error === 'no_resource' && detailPaper.html_error === 'no_resource')
                     ? 'bg-amber-50 border border-amber-150 text-amber-850'
@@ -802,74 +927,6 @@ export default function App() {
                   )}
                 </div>
               )}
-
-              {/* 手动上传文件（应对防爬阻断） */}
-              <div className="border-t border-slate-100 pt-3 space-y-2">
-                <div className="flex items-center justify-between">
-                  <span className="text-slate-450 font-bold block">手动离线上传文献</span>
-                  <span className="text-[9px] text-amber-700 font-bold bg-amber-50 px-2 py-0.5 rounded border border-amber-200">防爬/人机验证备用</span>
-                </div>
-                <p className="text-[10px] text-slate-450 leading-relaxed">
-                  若自动下载受阻，可在浏览器中打开上方链接，手动保存 PDF 或 HTML 后在此处上传覆盖。
-                </p>
-                <div className="grid grid-cols-2 gap-2">
-                  <div className="flex flex-col items-center justify-center border border-dashed border-slate-300 rounded-lg p-2 hover:bg-slate-50 transition-colors relative cursor-pointer group min-h-[50px]">
-                    <input
-                      type="file"
-                      accept="application/pdf"
-                      onChange={(e) => {
-                        const file = e.target.files?.[0];
-                        if (file) handleManualUpload(detailPaper.bibcode, 'pdf', file);
-                      }}
-                      className="absolute inset-0 opacity-0 cursor-pointer w-full h-full"
-                      disabled={uploadingBibcode === detailPaper.bibcode}
-                    />
-                    <span className="text-[10px] font-bold text-sky-600 group-hover:underline">
-                      {uploadingBibcode === detailPaper.bibcode ? '上传中...' : '上传 PDF 文献'}
-                    </span>
-                    <span className="text-[8px] text-slate-400">支持 .pdf 格式</span>
-                  </div>
-
-                  <div className="flex flex-col items-center justify-center border border-dashed border-slate-300 rounded-lg p-2 hover:bg-slate-50 transition-colors relative cursor-pointer group min-h-[50px]">
-                    <input
-                      type="file"
-                      accept="text/html,.html"
-                      onChange={(e) => {
-                        const file = e.target.files?.[0];
-                        if (file) handleManualUpload(detailPaper.bibcode, 'html', file);
-                      }}
-                      className="absolute inset-0 opacity-0 cursor-pointer w-full h-full"
-                      disabled={uploadingBibcode === detailPaper.bibcode}
-                    />
-                    <span className="text-[10px] font-bold text-sky-600 group-hover:underline">
-                      {uploadingBibcode === detailPaper.bibcode ? '上传中...' : '上传 HTML 文献'}
-                    </span>
-                    <span className="text-[8px] text-slate-400">支持 .html 格式</span>
-                  </div>
-                </div>
-
-                {!detailPaper.is_downloaded && (
-                  <div className="pt-1">
-                    {detailPaper.pdf_error === 'no_resource' && detailPaper.html_error === 'no_resource' ? (
-                      <button
-                        type="button"
-                        onClick={() => handleMarkNoResource(detailPaper.bibcode, true)}
-                        className="w-full py-2 bg-slate-100 hover:bg-slate-200 text-slate-700 rounded-lg text-[10px] font-bold transition-all border border-slate-250 cursor-pointer flex items-center justify-center gap-1.5"
-                      >
-                        🔄 恢复自动下载状态 (允许后续重新尝试)
-                      </button>
-                    ) : (
-                      <button
-                        type="button"
-                        onClick={() => handleMarkNoResource(detailPaper.bibcode, false)}
-                        className="w-full py-2 bg-slate-100 hover:bg-slate-200 text-slate-700 rounded-lg text-[10px] font-bold transition-all border border-slate-250 cursor-pointer flex items-center justify-center gap-1.5"
-                      >
-                        ⚠️ 标记为“无有效全文资源” (排查后跳过重试)
-                      </button>
-                    )}
-                  </div>
-                )}
-              </div>
             </div>
 
             {/* 底部操作：整合所有动作（阅读、图谱、下载） */}
diff --git a/dashboard/src/components/layout/Sidebar.tsx b/dashboard/src/components/layout/Sidebar.tsx
index 898081b..ce34f06 100644
--- a/dashboard/src/components/layout/Sidebar.tsx
+++ b/dashboard/src/components/layout/Sidebar.tsx
@@ -1,5 +1,6 @@
 // dashboard/src/components/layout/Sidebar.tsx
-import { Search, BookOpen, GitFork, Library, RefreshCw } from 'lucide-react';
+import { useState } from 'react';
+import { Search, BookOpen, GitFork, Library, RefreshCw, ChevronLeft } from 'lucide-react';
 import type { StandardPaper } from '../../types';
 
 interface SidebarProps {
@@ -10,31 +11,81 @@ interface SidebarProps {
 }
 
 export function Sidebar({ activeTab, setActiveTab, selectedPaper, loadCitations }: SidebarProps) {
+  const [isCollapsed, setIsCollapsed] = useState(false);
+
+  const renderLogo = () => (
+    <svg width="100%" height="100%" viewBox="0 0 48 48" fill="none" xmlns="http://www.w3.org/2000/svg" className="w-full h-full">
+      <circle cx="24" cy="24" r="18" stroke="#bae6fd" strokeWidth="1.5" />
+      <circle cx="24" cy="24" r="21" stroke="#0284c7" strokeWidth="1.5" strokeDasharray="2 3" />
+      <path d="M24 9C24 18 24 18 33 24C24 24 24 24 24 33C24 24 24 24 15 24C24 18 24 18 24 9Z" fill="url(#sidebarStarGrad)" />
+      <ellipse cx="24" cy="24" rx="20" ry="7" transform="rotate(-28 24 24)" stroke="#0284c7" strokeWidth="2" />
+      <circle cx="38" cy="16" r="4.5" fill="#0284c7" stroke="#ffffff" strokeWidth="1.5" />
+      <circle cx="10" cy="32" r="2.5" fill="#38bdf8" />
+      <defs>
+        <linearGradient id="sidebarStarGrad" x1="15" y1="9" x2="33" y2="33" gradientUnits="userSpaceOnUse">
+          <stop offset="0%" stopColor="#0284c7" />
+          <stop offset="100%" stopColor="#0369a1" />
+        </linearGradient>
+      </defs>
+    </svg>
+  );
+
   return (
-    <aside className="w-64 bg-slate-50 border-r border-slate-200 flex flex-col justify-between py-6 px-4 z-10 select-none">
+    <aside 
+      className={`bg-slate-50 border-r border-slate-200 flex flex-col justify-between py-6 z-20 select-none transition-all duration-355 cubic-bezier(0.4, 0, 0.2, 1) ${
+        isCollapsed ? 'w-16 px-2' : 'w-64 px-4'
+      }`}
+    >
       <div>
-        {/* 系统LOGO区 */}
-        <div className="px-3 mb-8 flex items-center gap-3">
-          <div className="w-9 h-9 flex items-center justify-center">
-            <svg className="w-9 h-9" viewBox="0 0 48 48" fill="none" xmlns="http://www.w3.org/2000/svg">
-              <circle cx="24" cy="24" r="18" stroke="#bae6fd" strokeWidth="1.5" />
-              <circle cx="24" cy="24" r="21" stroke="#0284c7" strokeWidth="1.5" strokeDasharray="2 3" />
-              <path d="M24 9C24 18 24 18 33 24C24 24 24 24 24 33C24 24 24 24 15 24C24 18 24 18 24 9Z" fill="url(#sidebarStarGrad)" />
-              <ellipse cx="24" cy="24" rx="20" ry="7" transform="rotate(-28 24 24)" stroke="#0284c7" strokeWidth="2" />
-              <circle cx="38" cy="16" r="4.5" fill="#0284c7" stroke="#ffffff" strokeWidth="1.5" />
-              <circle cx="10" cy="32" r="2.5" fill="#38bdf8" />
-              <defs>
-                <linearGradient id="sidebarStarGrad" x1="15" y1="9" x2="33" y2="33" gradientUnits="userSpaceOnUse">
-                  <stop offset="0%" stopColor="#0284c7" />
-                  <stop offset="100%" stopColor="#0369a1" />
-                </linearGradient>
-              </defs>
-            </svg>
-          </div>
-          <div>
-            <h1 className="text-sm font-bold text-slate-800 tracking-wider">AstroResearch</h1>
-            <span className="text-[11px] text-slate-500 block font-medium">天文学科研辅助系统</span>
+        {/* 系统LOGO与折叠控制区 */}
+        <div className={`mb-8 flex items-center transition-all duration-300 ${
+          isCollapsed ? 'justify-center px-0' : 'justify-between px-3'
+        }`}>
+          {/* Logo & 标题文字 */}
+          <div className="flex items-center gap-3 min-w-0">
+            {/* Logo按钮 (只在折叠状态下可点击展开) */}
+            <button
+              type="button"
+              disabled={!isCollapsed}
+              onClick={() => setIsCollapsed(false)}
+              className={`flex items-center justify-center shrink-0 rounded-xl transition-all duration-300 ${
+                isCollapsed 
+                  ? 'w-11 h-11 bg-white hover:bg-sky-50/50 border border-slate-200 cursor-pointer shadow-xs hover:shadow-sm hover:scale-105 active:scale-95' 
+                  : 'w-9 h-9 bg-transparent border border-transparent cursor-default'
+              }`}
+              title={isCollapsed ? "展开导航" : undefined}
+            >
+              <div className={`transition-all duration-300 flex items-center justify-center ${isCollapsed ? 'w-8 h-8' : 'w-9 h-9'}`}>
+                {renderLogo()}
+              </div>
+            </button>
+
+            {/* 系统说明文字 */}
+            <div 
+              className={`flex flex-col transition-all duration-300 origin-left ${
+                isCollapsed 
+                  ? 'opacity-0 max-w-0 scale-95 -translate-x-2 pointer-events-none select-none overflow-hidden h-0' 
+                  : 'opacity-100 max-w-[150px] scale-100 translate-x-0'
+              }`}
+            >
+              <h1 className="text-sm font-bold text-slate-800 tracking-wider whitespace-nowrap">AstroResearch</h1>
+              <span className="text-[11px] text-slate-500 block font-medium font-sans whitespace-nowrap">天文学科研辅助系统</span>
+            </div>
           </div>
+
+          {/* 折叠控制按钮 (圆润悬浮效果) */}
+          <button
+            type="button"
+            onClick={() => setIsCollapsed(true)}
+            className={`p-1.5 rounded-full bg-slate-100 hover:bg-slate-200 border border-slate-200 text-slate-500 hover:text-slate-800 transition-all duration-300 cursor-pointer shadow-2xs shrink-0 flex items-center justify-center hover:scale-105 active:scale-95 ${
+              isCollapsed 
+                ? 'opacity-0 scale-75 pointer-events-none w-0 h-0 p-0 border-0 overflow-hidden' 
+                : 'opacity-100 scale-100'
+            }`}
+            title="收起导航"
+          >
+            <ChevronLeft className="w-3.5 h-3.5" />
+          </button>
         </div>
 
         {/* 导航菜单列表 */}
@@ -43,22 +94,25 @@ export function Sidebar({ activeTab, setActiveTab, selectedPaper, loadCitations
             { id: 'search', label: '统一检索', icon: Search },
             { id: 'library', label: '馆藏管理', icon: Library },
             { id: 'sync', label: '批量任务', icon: RefreshCw },
-            { id: 'reader', label: '双语阅读', icon: BookOpen, disabled: !selectedPaper },
-            { id: 'citation', label: '引用星系', icon: GitFork, disabled: !selectedPaper },
-          ].map(tab => {
+            { id: 'reader', label: '双语阅读', icon: BookOpen },
+            { id: 'citation', label: '引用星系', icon: GitFork },
+          ].map((tab: { id: string; label: string; icon: any; disabled?: boolean }) => {
             const Icon = tab.icon;
             const isActive = activeTab === tab.id;
             return (
               <button
                 key={tab.id}
                 disabled={tab.disabled}
+                title={isCollapsed ? tab.label : undefined}
                 onClick={() => {
                   setActiveTab(tab.id as any);
                   if (tab.id === 'citation' && selectedPaper) {
                     loadCitations(selectedPaper.bibcode);
                   }
                 }}
-                className={`w-full flex items-center gap-3 px-3 py-2.5 rounded-lg text-xs font-semibold tracking-wider transition-all border ${
+                className={`w-full flex items-center rounded-lg text-xs font-semibold tracking-wider transition-all duration-300 border ${
+                  isCollapsed ? 'px-2 py-2.5 justify-center' : 'px-3 py-2.5'
+                } ${
                   isActive 
                     ? 'bg-sky-50 border-sky-200 text-sky-700 shadow-sm' 
                     : tab.disabled
@@ -66,29 +120,93 @@ export function Sidebar({ activeTab, setActiveTab, selectedPaper, loadCitations
                       : 'border-transparent text-slate-650 hover:bg-slate-100 hover:text-slate-800'
                 }`}
               >
-                <Icon className={`w-4 h-4 ${isActive ? 'text-sky-600' : 'text-slate-500'}`} />
-                <span>{tab.label}</span>
+                <Icon className={`w-4 h-4 shrink-0 transition-colors duration-300 ${isActive ? 'text-sky-600' : 'text-slate-500'}`} />
+                <span 
+                  className={`truncate transition-all duration-300 origin-left ${
+                    isCollapsed 
+                      ? 'opacity-0 max-w-0 pointer-events-none select-none overflow-hidden scale-90 -translate-x-2' 
+                      : 'opacity-100 max-w-[150px] scale-100 translate-x-0 ml-3'
+                  }`}
+                >
+                  {tab.label}
+                </span>
               </button>
             );
           })}
         </nav>
       </div>
 
-      {/* 底部当前选定文献提示 */}
-      {selectedPaper ? (
-        <div className="p-3.5 rounded-lg border border-sky-100 bg-sky-50/50">
-          <span className="text-[9px] font-bold text-sky-600 tracking-widest block mb-1">当前选定文献</span>
-          <h4 className="text-xs text-slate-800 font-bold line-clamp-2 mb-2 leading-relaxed">{selectedPaper.title}</h4>
-          <div className="flex items-center justify-between text-[10px] font-medium text-slate-500">
-            <span>发表年份: {selectedPaper.year}</span>
-            <span className="truncate max-w-[90px] font-mono">{selectedPaper.bibcode}</span>
+      {/* 底部当前选定文献提示 (平滑动画版本) */}
+      <div className="space-y-4">
+        {selectedPaper ? (
+          <div 
+            className={`relative overflow-hidden transition-all duration-300 border rounded-lg ${
+              isCollapsed 
+                ? 'p-0 border-transparent bg-transparent flex justify-center' 
+                : 'p-3.5 border-sky-100 bg-sky-50/50'
+            }`}
+            title={isCollapsed ? `当前选定文献: ${selectedPaper.title}` : undefined}
+          >
+            {/* 折叠下的微型图书图标 */}
+            <div 
+              className={`transition-all duration-300 flex items-center justify-center rounded-lg border border-sky-100 bg-sky-50 text-sky-600 shrink-0 shadow-sm ${
+                isCollapsed 
+                  ? 'w-9 h-9 opacity-100 scale-100' 
+                  : 'w-0 h-0 opacity-0 scale-75 overflow-hidden'
+              }`}
+            >
+              <BookOpen className="w-4 h-4" />
+            </div>
+
+            {/* 展开下的完整详情 */}
+            <div 
+              className={`transition-all duration-300 origin-left ${
+                isCollapsed 
+                  ? 'opacity-0 max-w-0 max-h-0 pointer-events-none select-none overflow-hidden' 
+                  : 'opacity-100 max-w-[200px] max-h-40'
+              }`}
+            >
+              <span className="text-[9px] font-bold text-sky-600 tracking-widest block mb-1">当前选定文献</span>
+              <h4 className="text-xs text-slate-800 font-bold line-clamp-2 mb-2 leading-relaxed">{selectedPaper.title}</h4>
+              <div className="flex items-center justify-between text-[10px] font-medium text-slate-500 gap-2">
+                <span className="shrink-0">发表年份: {selectedPaper.year}</span>
+                <span className="truncate max-w-[90px] font-mono">{selectedPaper.bibcode}</span>
+              </div>
+            </div>
           </div>
-        </div>
-      ) : (
-        <div className="p-3 rounded-lg border border-slate-200 bg-slate-100/30 text-center">
-          <span className="text-[10px] text-slate-400 font-medium tracking-wide">未选定研究目标</span>
-        </div>
-      )}
+        ) : (
+          <div 
+            className={`relative overflow-hidden transition-all duration-300 border rounded-lg ${
+              isCollapsed 
+                ? 'p-0 border-transparent bg-transparent flex justify-center' 
+                : 'p-3 border-slate-200 bg-slate-100/30'
+            }`}
+            title={isCollapsed ? "未选定研究目标" : undefined}
+          >
+            {/* 折叠下的微型馆藏图标 */}
+            <div 
+              className={`transition-all duration-300 flex items-center justify-center rounded-lg border border-slate-200 bg-slate-100/30 text-slate-400 shrink-0 ${
+                isCollapsed 
+                  ? 'w-9 h-9 opacity-100 scale-100' 
+                  : 'w-0 h-0 opacity-0 scale-75 overflow-hidden'
+              }`}
+            >
+              <Library className="w-4 h-4" />
+            </div>
+
+            {/* 展开下的提示文字 */}
+            <div 
+              className={`text-center transition-all duration-300 origin-left ${
+                isCollapsed 
+                  ? 'opacity-0 max-w-0 max-h-0 pointer-events-none select-none overflow-hidden' 
+                  : 'opacity-100 max-w-[200px] max-h-12'
+              }`}
+            >
+              <span className="text-[10px] text-slate-400 font-medium tracking-wide">未选定研究目标</span>
+            </div>
+          </div>
+        )}
+      </div>
     </aside>
   );
 }
diff --git a/dashboard/src/features/library/LibraryPanel.tsx b/dashboard/src/features/library/LibraryPanel.tsx
index 12faf85..ad48f3d 100644
--- a/dashboard/src/features/library/LibraryPanel.tsx
+++ b/dashboard/src/features/library/LibraryPanel.tsx
@@ -388,7 +388,7 @@ export function LibraryPanel({
           <div className="flex justify-between items-center text-xs text-slate-500 font-bold px-1">
             <span>已筛选出 {sortedLibrary.length} 篇文献 / 共 {library.length} 篇</span>
           </div>
-          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+          <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
             {sortedLibrary.map(paper => {
               return (
                 <div 
diff --git a/dashboard/src/features/reader/ReaderPanel.tsx b/dashboard/src/features/reader/ReaderPanel.tsx
index 6a3f4f9..292cd97 100644
--- a/dashboard/src/features/reader/ReaderPanel.tsx
+++ b/dashboard/src/features/reader/ReaderPanel.tsx
@@ -5,7 +5,7 @@ import remarkMath from 'remark-math';
 import remarkGfm from 'remark-gfm';
 import rehypeKatex from 'rehype-katex';
 import 'katex/dist/katex.min.css';
-import { FileText, Loader, Languages, RotateCw, Pencil, X, PlusCircle, Trash2 } from 'lucide-react';
+import { FileText, Loader, Languages, RotateCw, Pencil, X, PlusCircle, Trash2, BookOpen } from 'lucide-react';
 import type { StandardPaper, NoteRecord } from '../../types';
 
 interface ReaderPanelProps {
@@ -70,6 +70,7 @@ export function ReaderPanel({
     }
     return 'bilingual';
   });
+  const [showPdf, setShowPdf] = useState(false);
 
   const englishRef = useRef<HTMLDivElement>(null);
   const chineseRef = useRef<HTMLDivElement>(null);
@@ -232,10 +233,31 @@ export function ReaderPanel({
           <div 
             ref={englishRef}
             onScroll={handleEnglishScroll}
-            className="console-panel rounded-xl p-6 overflow-y-auto bg-white border border-slate-200 relative flex flex-col"
+            className={`console-panel rounded-xl p-6 bg-white border border-slate-200 relative flex flex-col ${
+              showPdf ? 'overflow-hidden' : 'overflow-y-auto'
+            }`}
           >
             <div className="flex items-center justify-between mb-4 border-b border-slate-100 pb-2.5">
-              <span className="text-xs font-bold text-slate-800">英文解析正文</span>
+              <div className="flex items-center gap-2">
+                <span className="text-xs font-bold text-slate-800">英文解析正文</span>
+                {selectedPaper.has_pdf && (
+                  <button
+                    type="button"
+                    onClick={() => setShowPdf(!showPdf)}
+                    className="text-[9px] font-bold px-2 py-0.5 rounded bg-sky-50 text-sky-700 border border-sky-200 hover:bg-sky-100 transition-all cursor-pointer flex items-center gap-1"
+                  >
+                    {showPdf ? (
+                      <>
+                        <FileText className="w-3 h-3" /> 显示正文
+                      </>
+                    ) : (
+                      <>
+                        <BookOpen className="w-3 h-3" /> 显示 PDF
+                      </>
+                    )}
+                  </button>
+                )}
+              </div>
               <button
                 onClick={() => setShowNotesPanel(!showNotesPanel)}
                 className={`flex items-center gap-1 text-xs font-bold px-2.5 py-1 rounded-lg border transition-all ${
@@ -247,7 +269,15 @@ export function ReaderPanel({
               </button>
             </div>
             
-            {parsing ? (
+            {showPdf ? (
+              <div className="flex-1 min-h-0 w-full rounded-lg overflow-hidden border border-slate-200 bg-slate-50">
+                <iframe
+                  src={`/api/files/PDF/${selectedPaper.bibcode}.pdf#navpanes=0&pagemode=none&view=FitH`}
+                  className="w-full h-full border-none"
+                  title="文献 PDF"
+                />
+              </div>
+            ) : parsing ? (
               <div className="flex-1 flex flex-col items-center justify-center text-slate-500 space-y-3">
                 <Loader className="w-8 h-8 animate-spin text-sky-600" />
                 <p className="text-xs font-bold">正在提取源文献正文排版，并转换至 Markdown 排版...</p>
diff --git a/dashboard/src/features/search/SearchPanel.tsx b/dashboard/src/features/search/SearchPanel.tsx
index b56d615..179a760 100644
--- a/dashboard/src/features/search/SearchPanel.tsx
+++ b/dashboard/src/features/search/SearchPanel.tsx
@@ -1,6 +1,6 @@
 // dashboard/src/features/search/SearchPanel.tsx
 import React from 'react';
-import { Search, Loader, CheckCircle, Copy, Download, ChevronLeft, ChevronRight, SlidersHorizontal } from 'lucide-react';
+import { Search, Loader, CheckCircle, Copy, Download, ChevronLeft, ChevronRight, SlidersHorizontal, AlertTriangle, Lightbulb } from 'lucide-react';
 import type { StandardPaper } from '../../types';
 import { CustomSelect } from '../../components/CustomSelect';
 
@@ -266,8 +266,11 @@ export function SearchPanel({
             </div>
           )}
 
-          <div className="text-[11px] text-slate-500 flex flex-wrap gap-x-4 gap-y-1 px-1">
-            <span className="font-semibold text-slate-650">💡 检索语法小提示:</span>
+          <div className="text-[11px] text-slate-500 flex flex-wrap gap-x-4 gap-y-1 px-1 items-center">
+            <span className="font-semibold text-slate-650 flex items-center gap-1">
+              <Lightbulb className="w-3.5 h-3.5 text-amber-500" />
+              检索语法小提示:
+            </span>
             <span>作者检索: <code className="bg-slate-200 px-1 py-0.5 rounded text-slate-800 font-mono text-[10px]">author:"Althaus"</code></span>
             <span>标题检索: <code className="bg-slate-200 px-1 py-0.5 rounded text-slate-800 font-mono text-[10px]">title:"hot subdwarf"</code></span>
             <span>年份范围: <code className="bg-slate-200 px-1 py-0.5 rounded text-slate-800 font-mono text-[10px]">year:2020-2023</code></span>
@@ -419,16 +422,16 @@ export function SearchPanel({
                           paper.pdf_error === 'no_resource' && paper.html_error === 'no_resource' ? (
                             <span 
                               title="已手动标记为【无有效全文资源】，批量下载时自动跳过"
-                              className="px-2 py-1 bg-slate-50 text-slate-600 border border-slate-200 text-[10px] font-bold rounded-lg cursor-help flex items-center gap-0.5"
+                              className="px-2 py-1 bg-slate-50 text-slate-600 border border-slate-200 text-[10px] font-bold rounded-lg cursor-help flex items-center gap-1"
                             >
-                              ⚠️ 无资源
+                              <AlertTriangle className="w-3 h-3 text-slate-400" /> 无资源
                             </span>
                           ) : (
                             <span 
                               title={`自动下载失败：${[paper.pdf_error, paper.html_error].filter(Boolean).join('; ')}`}
-                              className="px-2 py-1 bg-rose-50 text-rose-700 border border-rose-200 text-[10px] font-bold rounded-lg cursor-help flex items-center gap-0.5"
+                              className="px-2 py-1 bg-rose-50 text-rose-700 border border-rose-200 text-[10px] font-bold rounded-lg cursor-help flex items-center gap-1"
                             >
-                              ⚠️ 下载失败
+                              <AlertTriangle className="w-3 h-3 text-rose-500" /> 下载失败
                             </span>
                           )
                         )}
diff --git a/dashboard/src/features/sync/SyncPanel.tsx b/dashboard/src/features/sync/SyncPanel.tsx
index c6e89eb..7686269 100644
--- a/dashboard/src/features/sync/SyncPanel.tsx
+++ b/dashboard/src/features/sync/SyncPanel.tsx
@@ -1,6 +1,6 @@
 import { useState, useEffect, useRef } from 'react';
 import axios from 'axios';
-import { RefreshCw, Play, Info, AlertTriangle, CheckCircle, Loader, StopCircle, Download, FileText, SlidersHorizontal } from 'lucide-react';
+import { RefreshCw, Play, Info, AlertTriangle, CheckCircle, Loader, StopCircle, Download, FileText, SlidersHorizontal, Lightbulb } from 'lucide-react';
 
 import type { SavedSyncQuery } from '../../types';
 import { CustomSelect } from '../../components/CustomSelect';
@@ -559,8 +559,9 @@ export function SyncPanel() {
           </div>
 
           {status.active && (status.source === 'all' || status.source === 'arxiv') ? (
-            <div className="p-3 rounded-lg bg-amber-50 border border-amber-200 text-xs text-amber-700">
-              💡 同步 arXiv 文献时系统会自动加设 3000 毫秒的安全限流延迟以规避服务器封锁。
+            <div className="p-3 rounded-lg bg-amber-50 border border-amber-200 text-xs text-amber-700 flex items-start gap-1.5">
+              <Lightbulb className="w-4 h-4 shrink-0 mt-0.5" />
+              <span>同步 arXiv 文献时系统会自动加设 3000 毫秒的安全限流延迟以规避服务器封锁。</span>
             </div>
           ) : null}
         </div>
diff --git a/dashboard/src/types.ts b/dashboard/src/types.ts
index 52ea7db..45ace06 100644
--- a/dashboard/src/types.ts
+++ b/dashboard/src/types.ts
@@ -13,6 +13,8 @@ export interface StandardPaper {
   citation_count: number;
   reference_count: number;
   is_downloaded: boolean;
+  has_pdf: boolean;
+  has_html: boolean;
   has_markdown: boolean;
   has_translation: boolean;
   doctype: string;
diff --git a/docs/deployment.md b/docs/deployment.md
index 567a297..29af323 100644
--- a/docs/deployment.md
+++ b/docs/deployment.md
@@ -146,6 +146,9 @@ cargo build --release --bin health_check
 | `LLM_API_KEY` | 是 | - | 大语言模型 API Key |
 | `LLM_API_BASE` | 否 | `https://api.openai.com/v1` | 大语言模型 API 基础地址 |
 | `LLM_MODEL` | 否 | `gpt-4o-mini` | 翻译大模型名称 |
+| `EMBEDDING_API_KEY` | 否 | 默认与 `LLM_API_KEY` 一致 | 向量模型 API Key |
+| `EMBEDDING_API_BASE`| 否 | 默认与 `LLM_API_BASE` 一致 | 向量模型 API 基础地址 |
+| `EMBEDDING_MODEL`   | 否 | `text-embedding-3-small` | 向量模型名称 |
 | `QINIU_AK` | 否 | - | 七牛云 Access Key |
 | `QINIU_SK` | 否 | - | 七牛云 Secret Key |
 | `QINIU_BUCKET` | 否 | - | 七牛云存储空间名 |
diff --git a/scratch/audit_anomalies.py b/scratch/audit_anomalies.py
new file mode 100644
index 0000000..1a3c830
--- /dev/null
+++ b/scratch/audit_anomalies.py
@@ -0,0 +1,151 @@
+# scratch/audit_anomalies.py
+import os
+import re
+
+LOG_PATH = "/home/fmq/.gemini/antigravity/brain/4e405818-ae6d-46f6-a14a-d59613a4ee1c/.system_generated/tasks/task-914.log"
+LIBRARY_DIR = "/home/fmq/program/AstroResearch/library"
+
+def parse_flagged_files(log_path):
+    html_files = []
+    pdf_files = []
+    
+    if not os.path.exists(log_path):
+        print(f"Log path not found: {log_path}")
+        return html_files, pdf_files
+        
+    with open(log_path, 'r', encoding='utf-8') as f:
+        content = f.read()
+        
+    # Match lines like: ❌ 发现磁盘上损坏的 HTML 文件: "HTML/2010AIPC.1273..269M.html"
+    html_matches = re.findall(r'发现磁盘上损坏的 HTML 文件:\s*"([^"]+)"', content)
+    pdf_matches = re.findall(r'发现磁盘上损坏的 PDF 文件:\s*"([^"]+)"', content)
+    
+    # Remove duplicates
+    html_files = sorted(list(set(html_matches)))
+    pdf_files = sorted(list(set(pdf_matches)))
+    
+    return html_files, pdf_files
+
+def get_html_title(text):
+    match = re.search(r'<title[^>]*>(.*?)</title>', text, re.IGNORECASE | re.DOTALL)
+    if match:
+        return match.group(1).strip()
+    return "No Title"
+
+def audit_html(file_path):
+    if not os.path.exists(file_path):
+        return "File Missing", 0, ""
+        
+    size = os.path.getsize(file_path)
+    if size == 0:
+        return "Empty File (0 bytes)", size, ""
+        
+    try:
+        with open(file_path, 'r', encoding='utf-8', errors='ignore') as f:
+            content = f.read()
+    except Exception as e:
+        return f"Read Error: {e}", size, ""
+        
+    title = get_html_title(content)
+    lower = content.to_lowercase() if hasattr(content, 'to_lowercase') else content.lower()
+    
+    # Determine reason
+    if "just a moment" in lower or "please wait while we verify" in lower:
+        return "Cloudflare Turnstile WAF Block Page", size, title
+    if "radware bot manager" in lower:
+        return "Radware Bot Manager Captcha Page", size, title
+    if "aws waf" in lower or "awswafintegration" in lower:
+        return "AWS WAF Block Page", size, title
+    if "purchase access" in lower or "buy-box" in lower or "subscription required" in lower:
+        return "Publisher Paywall / Purchase Prompt", size, title
+    if "redirecting" in lower or "http-equiv=\"refresh\"" in lower:
+        return "HTML Redirect Page", size, title
+    if "conversion to html had a fatal error" in lower:
+        return "ar5iv Conversion Failed Stub Page", size, title
+    
+    # Check sections/references
+    has_sections = any(x in lower for x in ["ltx_title_section", "class=\"section\"", "## introduction", "<h2>introduction", "<h3>introduction", "class=\"ltx_section\""])
+    has_bib = any(x in lower for x in ["ltx_bibliography", "class=\"references\"", "<ol class=\"references\"", "<ul class=\"references\"", "id=\"bib\""])
+    
+    if size < 50000 and not (has_sections or has_bib):
+        return f"Snippet / Abstract Page (Missing sections/references, size={size}B)", size, title
+        
+    return "Valid HTML Content?", size, title
+
+def audit_pdf(file_path):
+    if not os.path.exists(file_path):
+        return "File Missing", 0, ""
+        
+    size = os.path.getsize(file_path)
+    if size == 0:
+        return "Empty File (0 bytes)", size, ""
+        
+    try:
+        with open(file_path, 'rb') as f:
+            header = f.read(512)
+    except Exception as e:
+        return f"Read Error: {e}", size, ""
+        
+    if not header.startswith(b"%PDF"):
+        if header.startswith(b"<!") or header.startswith(b"<html") or header.startswith(b"<HTML"):
+            # It's an HTML file disguised as a PDF
+            html_text = header.decode('utf-8', errors='ignore')
+            title = get_html_title(html_text)
+            lower = html_text.lower()
+            if "just a moment" in lower or "cloudflare" in lower:
+                return "HTML Disguised as PDF (Cloudflare WAF Block)", size, title
+            if "radware" in lower:
+                return "HTML Disguised as PDF (Radware Captcha)", size, title
+            if "open journal systems" in lower or "pkp_page_article" in lower:
+                return "HTML Disguised as PDF (OJS Viewer Page)", size, title
+            return "HTML Disguised as PDF (Unknown Webpage)", size, title
+        return "Corrupted / Missing %PDF Header Magic Number", size, ""
+        
+    # Check tail EOF
+    try:
+        with open(file_path, 'rb') as f:
+            f.seek(max(0, size - 1024))
+            tail = f.read(1024)
+    except Exception as e:
+        return f"Read Error seeking tail: {e}", size, ""
+        
+    if b"%%EOF" not in tail:
+        return "Corrupted PDF (Missing tail %%EOF marker)", size, ""
+        
+    if size < 5000:
+        return f"PDF Too Small ({size}B, likely error page)", size, ""
+        
+    return "Valid PDF Content?", size, ""
+
+def main():
+    html_files, pdf_files = parse_flagged_files(LOG_PATH)
+    print(f"Parsed {len(html_files)} HTML files and {len(pdf_files)} PDF files from log.")
+    
+    html_results = []
+    for rel_path in html_files:
+        abs_path = os.path.join(LIBRARY_DIR, rel_path)
+        status, size, title = audit_html(abs_path)
+        html_results.append((rel_path, status, size, title))
+        
+    pdf_results = []
+    for rel_path in pdf_files:
+        abs_path = os.path.join(LIBRARY_DIR, rel_path)
+        status, size, title = audit_pdf(abs_path)
+        pdf_results.append((rel_path, status, size, title))
+        
+    print("\n--- HTML AUDIT REPORT ---")
+    print("| File | Audit Status | Size (Bytes) | HTML Title |")
+    print("| --- | --- | --- | --- |")
+    for file, status, size, title in html_results:
+        clean_title = title.replace("|", "\\|").replace("\n", " ")
+        print(f"| {file} | {status} | {size} | {clean_title} |")
+        
+    print("\n--- PDF AUDIT REPORT ---")
+    print("| File | Audit Status | Size (Bytes) | HTML Title (if HTML) |")
+    print("| --- | --- | --- | --- |")
+    for file, status, size, title in pdf_results:
+        clean_title = title.replace("|", "\\|").replace("\n", " ")
+        print(f"| {file} | {status} | {size} | {clean_title} |")
+
+if __name__ == "__main__":
+    main()
diff --git a/scratch/scan_emojis.py b/scratch/scan_emojis.py
new file mode 100644
index 0000000..dd03b63
--- /dev/null
+++ b/scratch/scan_emojis.py
@@ -0,0 +1,38 @@
+import os
+import re
+import sys
+
+# Define a regex for emojis
+# This pattern matches common emoji characters
+emoji_pattern = re.compile(
+    "["
+    "\U00010000-\U0010ffff"  # All supplementary Unicode characters (includes most emojis)
+    "\u2600-\u27bf"          # Miscellaneous symbols, dingbats
+    "\u2300-\u23ff"          # Miscellaneous technical
+    "\u2b50"                 # Medium white star
+    "\u2934-\u2935"          # Arrows
+    "\u3297"                 # Congratulation sign in circle
+    "\u3299"                 # Secret sign in circle
+    "]",
+    flags=re.UNICODE
+)
+
+src_dir = "/home/fmq/program/AstroResearch/dashboard/src"
+found = False
+
+for root, dirs, files in os.walk(src_dir):
+    for file in files:
+        if file.endswith(('.tsx', '.ts')):
+            path = os.path.join(root, file)
+            try:
+                with open(path, 'r', encoding='utf-8') as f:
+                    for line_num, line in enumerate(f, 1):
+                        matches = emoji_pattern.findall(line)
+                        if matches:
+                            print(f"{path}:{line_num}: {' '.join(matches)} -> {line.strip()}")
+                            found = True
+            except Exception as e:
+                print(f"Error reading {path}: {e}")
+
+if not found:
+    print("No emojis found.")
diff --git a/src/api/helpers.rs b/src/api/helpers.rs
index ceda91a..9c0f2ab 100644
--- a/src/api/helpers.rs
+++ b/src/api/helpers.rs
@@ -45,6 +45,8 @@ pub fn convert_ads_doc_to_standard(doc: &AdsPaperDoc) -> StandardPaper {
         citation_count: doc.citation_count.unwrap_or(0),
         reference_count: doc.reference_count.unwrap_or(0),
         is_downloaded: false,
+        has_pdf: false,
+        has_html: false,
         has_markdown: false,
         has_translation: false,
         doctype: doc.doctype.clone().unwrap_or_else(|| "article".to_string()),
@@ -67,6 +69,8 @@ pub fn convert_arxiv_to_standard(doc: &ArxivPaper) -> StandardPaper {
         citation_count: 0,
         reference_count: 0,
         is_downloaded: false,
+        has_pdf: false,
+        has_html: false,
         has_markdown: false,
         has_translation: false,
         doctype: "eprint".to_string(),
@@ -201,6 +205,8 @@ pub async fn get_paper_from_db(db: &SqlitePool, library_dir: &std::path::Path, b
         citation_count: r.get(9),
         reference_count: r.get(10),
         is_downloaded: is_pdf_exist || is_html_exist,
+        has_pdf: is_pdf_exist,
+        has_html: is_html_exist,
         has_markdown: is_md_exist,
         has_translation: is_tr_exist,
         doctype: doctype_val.unwrap_or_else(|| "article".to_string()),
@@ -345,6 +351,8 @@ mod tests {
             citation_count: 5,
             reference_count: 10,
             is_downloaded: false,
+            has_pdf: false,
+            has_html: false,
             has_markdown: false,
             has_translation: false,
             doctype: "article".to_string(),
diff --git a/src/api/mod.rs b/src/api/mod.rs
index 496b841..3d1f2b0 100644
--- a/src/api/mod.rs
+++ b/src/api/mod.rs
@@ -7,6 +7,7 @@ use crate::services::translation::Dictionary;
 use crate::clients::qiniu::QiniuClient;
 use crate::clients::ads::AdsClient;
 use crate::clients::arxiv::ArxivClient;
+use crate::clients::llm::{LlmClient, EmbeddingClient};
 use crate::services::download::Downloader;
 
 // 全局共享的 Axum 应用上下文状态
@@ -17,6 +18,8 @@ pub struct AppState {
     pub qiniu: QiniuClient,
     pub ads: AdsClient,
     pub arxiv: ArxivClient,
+    pub llm: LlmClient,
+    pub embedding: EmbeddingClient,
     pub downloader: Downloader,
     pub harvest_status: Arc<tokio::sync::Mutex<crate::services::batch_sync::MetaSyncStatus>>,
     pub process_status: Arc<tokio::sync::Mutex<crate::services::batch_sync::AssetSyncStatus>>,
@@ -38,6 +41,8 @@ pub struct StandardPaper {
     pub citation_count: i32,
     pub reference_count: i32,
     pub is_downloaded: bool,
+    pub has_pdf: bool,
+    pub has_html: bool,
     pub has_markdown: bool,
     pub has_translation: bool,
     pub doctype: String,
diff --git a/src/api/papers.rs b/src/api/papers.rs
index 47fc072..a178172 100644
--- a/src/api/papers.rs
+++ b/src/api/papers.rs
@@ -150,11 +150,17 @@ pub async fn download_paper(
 
     // 下载策略：
     //   1. 如有 arXiv ID，优先走 arXiv 直连（绕过出版商防护墙，成功率高）
-    //   2. 否则走 ADS 网关多级回退（PUB_PDF → EPRINT_PDF → CrossRef）
-    //   3. 若 ADS 路径 PDF/HTML 均失败但有 arXiv ID，再尝试 arXiv 作为兜底
+    //   2. 若 arXiv 直连失败，回退走 ADS 网关多级回退（PUB_PDF → EPRINT_PDF → CrossRef）
     let (pdf_res, html_res) = if !paper.arxiv_id.is_empty() {
         info!("[下载] 优先使用 arXiv 通道: {}", paper.arxiv_id);
-        state.downloader.download_arxiv_direct(&paper.arxiv_id, &state.config.library_dir).await
+        let res = state.downloader.download_arxiv_direct(&paper.arxiv_id, &state.config.library_dir).await;
+        if res.0.is_ok() || res.1.is_ok() {
+            res
+        } else {
+            warn!("[下载] arXiv 通道下载失败，开始回退至 ADS/出版商通道: {}", req.bibcode);
+            let doi_opt = if !paper.doi.is_empty() { Some(paper.doi.as_str()) } else { None };
+            state.downloader.download_paper(&req.bibcode, doi_opt, &state.config.library_dir).await
+        }
     } else {
         let doi_opt = if !paper.doi.is_empty() { Some(paper.doi.as_str()) } else { None };
         state.downloader.download_paper(&req.bibcode, doi_opt, &state.config.library_dir).await
@@ -179,11 +185,11 @@ pub async fn download_paper(
 
     let pdf_rel = match pdf_res {
         Ok(p) => Some(p.strip_prefix(&state.config.library_dir).unwrap_or(&p).to_string_lossy().to_string()),
-        Err(e) => Some(format!("error: {}", e)),
+        Err(_) => None, // 只要有一方下载成功，失败的一方字段置空（NULL），避免在 path 字段中留存报错日志
     };
     let html_rel = match html_res {
         Ok(p) => Some(p.strip_prefix(&state.config.library_dir).unwrap_or(&p).to_string_lossy().to_string()),
-        Err(e) => Some(format!("error: {}", e)),
+        Err(_) => None, // 只要有一方下载成功，失败的一方字段置空（NULL），避免在 path 字段中留存报错日志
     };
 
     // 回写存储路径至数据库
@@ -386,7 +392,7 @@ pub async fn translate_paper(
         })?;
 
     // 调用 LLM 翻译服务并注入对照词表
-    let translated_markdown = crate::services::translation::translate_markdown(&english_markdown, &state.dict, &state.config)
+    let translated_markdown = crate::services::translation::translate_markdown(&english_markdown, &state.dict, &state.llm)
         .await
         .map_err(|e| {
             error!("文献 {} 翻译失败：调用 LLM 翻译发生错误: {}", req.bibcode, e);
@@ -571,6 +577,9 @@ pub async fn get_library(
         let keywords_str: Option<String> = r.get(5);
         let keywords: Vec<String> = keywords_str.and_then(|s| serde_json::from_str(&s).ok()).unwrap_or_default();
 
+        let is_pdf_exist = pdf_path.as_ref().map(|p| state.config.library_dir.join(p).exists()).unwrap_or(false);
+        let is_html_exist = html_path.as_ref().map(|p| state.config.library_dir.join(p).exists()).unwrap_or(false);
+
         let pdf_error = pdf_path.as_ref()
             .filter(|p| p.starts_with("error:"))
             .map(|p| p["error:".len()..].trim().to_string());
@@ -590,8 +599,9 @@ pub async fn get_library(
             arxiv_id: r.get(8),
             citation_count: r.get(9),
             reference_count: r.get(10),
-            is_downloaded: pdf_path.as_ref().map(|p| state.config.library_dir.join(p).exists()).unwrap_or(false)
-                || html_path.as_ref().map(|p| state.config.library_dir.join(p).exists()).unwrap_or(false),
+            is_downloaded: is_pdf_exist || is_html_exist,
+            has_pdf: is_pdf_exist,
+            has_html: is_html_exist,
             has_markdown: markdown_path.as_ref().map(|p| state.config.library_dir.join(p).exists()).unwrap_or(false),
             has_translation: translation_path.as_ref().map(|p| state.config.library_dir.join(p).exists()).unwrap_or(false),
             doctype: doctype_val.unwrap_or_else(|| "article".to_string()),
diff --git a/src/bin/health_check.rs b/src/bin/health_check.rs
index 572e06b..cfb3003 100644
--- a/src/bin/health_check.rs
+++ b/src/bin/health_check.rs
@@ -8,8 +8,13 @@ use tracing_subscriber::FmtSubscriber;
 
 // 检测防爬、验证码、登录墙特征
 fn detect_anti_bot(content: &str) -> Option<&'static str> {
+    if content.len() > 150_000 {
+        return None;
+    }
     let lower = content.to_lowercase();
-    let cf_patterns = [
+
+    // 1. 强特征防爬与 WAF 挑战（任何小于 150KB 的内容都做检测）
+    let waf_patterns = [
         ("checking your browser", "Cloudflare WAF 浏览器检查"),
         ("please wait while we verify", "Cloudflare WAF 验证"),
         ("cf-browser-verification", "Cloudflare WAF 验证特征"),
@@ -35,11 +40,32 @@ fn detect_anti_bot(content: &str) -> Option<&'static str> {
         ("shieldsquare_styles", "ShieldSquare WAF 拦截"),
     ];
 
-    for &(p, desc) in &cf_patterns {
+    for &(p, desc) in &waf_patterns {
         if lower.contains(p) {
             return Some(desc);
         }
     }
+
+    // 2. 通用 HTTP 错误与 CDN 关键字检测（仅当内容长度小于 5000 字节时检测，避免在正常文献中误判 CDN 脚本等）
+    if content.len() < 5000 {
+        let err_patterns = [
+            ("cloudflare", "Cloudflare 错误/防护页面"),
+            ("service temporarily unavailable", "503 服务暂时不可用"),
+            ("503 service", "503 服务异常"),
+            ("502 bad gateway", "502 网关错误"),
+            ("504 gateway timeout", "504 网关超时"),
+            ("403 forbidden", "403 访问被拒绝"),
+            ("404 not found", "404 资源未找到"),
+            ("500 internal server error", "500 服务器错误"),
+            ("site error", "网站错误"),
+        ];
+        for &(p, desc) in &err_patterns {
+            if lower.contains(p) {
+                return Some(desc);
+            }
+        }
+    }
+
     None
 }
 
@@ -342,10 +368,24 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
                 db_skip_type_cleaned += 1;
             }
         } else {
+            let has_valid_pdf = pdf_path_opt.as_ref()
+                .map(|p| !p.starts_with("error:") && library_dir.join(p).exists())
+                .unwrap_or(false);
+            let has_valid_html = html_path_opt.as_ref()
+                .map(|p| !p.starts_with("error:") && library_dir.join(p).exists())
+                .unwrap_or(false);
+
             if let Some(ref pdf_p) = pdf_path_opt {
                 if pdf_p.starts_with("error:") {
-                    db_pdf_err_text += 1;
-                    pdf_db_msg = format!("数据库存储了报错字符串: {}", pdf_p);
+                    if has_valid_html {
+                        db_pdf_err_text += 1;
+                        pdf_db_msg = format!("文献已成功下载 HTML 格式，但 PDF 仍留有报错日志（将清理为 NULL）: {}", pdf_p);
+                        need_db_fix = true;
+                        pdf_needs_fix = true;
+                    } else {
+                        db_pdf_err_text += 1;
+                        pdf_db_msg = format!("数据库存储了报错字符串: {}", pdf_p);
+                    }
                 } else if !library_dir.join(pdf_p).exists() {
                     db_pdf_missing += 1;
                     pdf_db_msg = format!("物理 PDF 文件丢失 (路径: {})", pdf_p);
@@ -356,8 +396,15 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
             if let Some(ref html_p) = html_path_opt {
                 if html_p.starts_with("error:") {
-                    db_html_err_text += 1;
-                    html_db_msg = format!("数据库存储了报错字符串: {}", html_p);
+                    if has_valid_pdf {
+                        db_html_err_text += 1;
+                        html_db_msg = format!("文献已成功下载 PDF 格式，但 HTML 仍留有报错日志（将清理为 NULL）: {}", html_p);
+                        need_db_fix = true;
+                        html_needs_fix = true;
+                    } else {
+                        db_html_err_text += 1;
+                        html_db_msg = format!("数据库存储了报错字符串: {}", html_p);
+                    }
                 } else if !library_dir.join(html_p).exists() {
                     db_html_missing += 1;
                     html_db_msg = format!("物理 HTML 文件丢失 (路径: {})", html_p);
@@ -374,13 +421,6 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
                     markdown_needs_fix = true;
                 } else {
                     // 如果 Markdown 物理文件存在，但它既没有有效 PDF 也没有有效 HTML
-                    let has_valid_pdf = pdf_path_opt.as_ref()
-                        .map(|p| !p.starts_with("error:") && library_dir.join(p).exists())
-                        .unwrap_or(false);
-                    let has_valid_html = html_path_opt.as_ref()
-                        .map(|p| !p.starts_with("error:") && library_dir.join(p).exists())
-                        .unwrap_or(false);
-
                     if !has_valid_pdf && !has_valid_html {
                         db_markdown_orphaned += 1;
                         markdown_db_msg = format!("Markdown 存在且完好，但失去有效 PDF/HTML 数据源，判定为孤立的 Markdown (路径: {})", md_p);
diff --git a/src/clients/llm.rs b/src/clients/llm.rs
new file mode 100644
index 0000000..bbbbb45
--- /dev/null
+++ b/src/clients/llm.rs
@@ -0,0 +1,190 @@
+// src/clients/llm.rs
+use serde::Deserialize;
+use reqwest::Client;
+use tracing::error;
+
+#[derive(Clone, Debug)]
+pub struct LlmClient {
+    api_key: String,
+    api_base: String,
+    model: String,
+    client: Client,
+}
+
+impl LlmClient {
+    pub fn new(api_key: String, api_base: String, model: String) -> Self {
+        LlmClient {
+            api_key,
+            api_base,
+            model,
+            client: Client::new(),
+        }
+    }
+
+    pub fn model(&self) -> &str {
+        &self.model
+    }
+
+    pub fn api_base(&self) -> &str {
+        &self.api_base
+    }
+
+    pub fn api_key(&self) -> &str {
+        &self.api_key
+    }
+
+    pub async fn chat_completion(&self, system_prompt: &str, user_content: &str) -> anyhow::Result<String> {
+        let url = format!("{}/chat/completions", self.api_base);
+        
+        let payload = serde_json::json!({
+            "model": self.model,
+            "messages": [
+                {
+                    "role": "system",
+                    "content": system_prompt
+                },
+                {
+                    "role": "user",
+                    "content": user_content
+                }
+            ],
+            "temperature": 0.3
+        });
+
+        let response = self.client.post(&url)
+            .header("Authorization", format!("Bearer {}", self.api_key))
+            .header("Content-Type", "application/json")
+            .json(&payload)
+            .send()
+            .await?;
+
+        if !response.status().is_success() {
+            let status = response.status();
+            let body = response.text().await.unwrap_or_default();
+            error!("LLM 接口调用失败: 状态码={}, 报错={}", status, body);
+            return Err(anyhow::anyhow!("大模型接口返回错误状态: {}", status));
+        }
+
+        #[derive(Deserialize)]
+        struct Message {
+            content: String,
+        }
+
+        #[derive(Deserialize)]
+        struct Choice {
+            message: Message,
+        }
+
+        #[derive(Deserialize)]
+        struct LLMResponse {
+            choices: Vec<Choice>,
+        }
+
+        let res_data: LLMResponse = response.json().await?;
+        if let Some(choice) = res_data.choices.first() {
+            Ok(choice.message.content.clone())
+        } else {
+            Err(anyhow::anyhow!("大模型返回空翻译选项集"))
+        }
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct EmbeddingClient {
+    api_key: String,
+    api_base: String,
+    model: String,
+    client: Client,
+}
+
+impl EmbeddingClient {
+    pub fn new(api_key: String, api_base: String, model: String) -> Self {
+        EmbeddingClient {
+            api_key,
+            api_base,
+            model,
+            client: Client::new(),
+        }
+    }
+
+    pub fn model(&self) -> &str {
+        &self.model
+    }
+
+    pub fn api_base(&self) -> &str {
+        &self.api_base
+    }
+
+    pub fn api_key(&self) -> &str {
+        &self.api_key
+    }
+
+    pub async fn create_embedding(&self, text: &str) -> anyhow::Result<Vec<f32>> {
+        let url = format!("{}/embeddings", self.api_base);
+        
+        let payload = serde_json::json!({
+            "model": self.model,
+            "input": text,
+        });
+
+        let response = self.client.post(&url)
+            .header("Authorization", format!("Bearer {}", self.api_key))
+            .header("Content-Type", "application/json")
+            .json(&payload)
+            .send()
+            .await?;
+
+        if !response.status().is_success() {
+            let status = response.status();
+            let body = response.text().await.unwrap_or_default();
+            error!("Embedding 接口调用失败: 状态码={}, 报错={}", status, body);
+            return Err(anyhow::anyhow!("向量接口返回错误状态: {}", status));
+        }
+
+        #[derive(Deserialize)]
+        struct EmbeddingData {
+            embedding: Vec<f32>,
+        }
+
+        #[derive(Deserialize)]
+        struct EmbeddingResponse {
+            data: Vec<EmbeddingData>,
+        }
+
+        let res_data: EmbeddingResponse = response.json().await?;
+        if let Some(data) = res_data.data.first() {
+            Ok(data.embedding.clone())
+        } else {
+            Err(anyhow::anyhow!("向量接口返回空向量数据"))
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_llm_client_initialization() {
+        let client = LlmClient::new(
+            "key".to_string(),
+            "base".to_string(),
+            "model".to_string(),
+        );
+        assert_eq!(client.api_key(), "key");
+        assert_eq!(client.api_base(), "base");
+        assert_eq!(client.model(), "model");
+    }
+
+    #[test]
+    fn test_embedding_client_initialization() {
+        let client = EmbeddingClient::new(
+            "key".to_string(),
+            "base".to_string(),
+            "model".to_string(),
+        );
+        assert_eq!(client.api_key(), "key");
+        assert_eq!(client.api_base(), "base");
+        assert_eq!(client.model(), "model");
+    }
+}
diff --git a/src/clients/mod.rs b/src/clients/mod.rs
index e2767e2..58c3417 100644
--- a/src/clients/mod.rs
+++ b/src/clients/mod.rs
@@ -1,3 +1,4 @@
 pub mod ads;
 pub mod arxiv;
 pub mod qiniu;
+pub mod llm;
diff --git a/src/lib.rs b/src/lib.rs
index 1589df2..f78317e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -10,6 +10,9 @@ pub struct Config {
     pub llm_api_key: String,      // 大语言模型 API Key
     pub llm_api_base: String,     // 大语言模型 API 基础地址
     pub llm_model: String,        // 调用的翻译大模型名称
+    pub embedding_api_key: String, // 向量模型 API Key
+    pub embedding_api_base: String,// 向量模型 API 基础地址
+    pub embedding_model: String,   // 向量模型名称
     pub qiniu_ak: String,         // 七牛云 Access Key
     pub qiniu_sk: String,         // 七牛云 Secret Key
     pub qiniu_bucket: String,     // 七牛云存储空间名 (Bucket)
@@ -34,6 +37,13 @@ impl Config {
         let llm_model = env::var("LLM_MODEL")
             .unwrap_or_else(|_| "gpt-4o-mini".to_string());
         
+        let embedding_api_key = env::var("EMBEDDING_API_KEY")
+            .unwrap_or_else(|_| llm_api_key.clone());
+        let embedding_api_base = env::var("EMBEDDING_API_BASE")
+            .unwrap_or_else(|_| llm_api_base.clone());
+        let embedding_model = env::var("EMBEDDING_MODEL")
+            .unwrap_or_else(|_| "text-embedding-3-small".to_string());
+        
         let qiniu_ak = env::var("QINIU_AK").unwrap_or_default();
         let qiniu_sk = env::var("QINIU_SK").unwrap_or_default();
         let qiniu_bucket = env::var("QINIU_BUCKET").unwrap_or_default();
@@ -56,6 +66,9 @@ impl Config {
             llm_api_key,
             llm_api_base,
             llm_model,
+            embedding_api_key,
+            embedding_api_base,
+            embedding_model,
             qiniu_ak,
             qiniu_sk,
             qiniu_bucket,
diff --git a/src/main.rs b/src/main.rs
index 29d1e58..6b97193 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -16,6 +16,7 @@ use astroresearch::services::translation::Dictionary;
 use astroresearch::clients::qiniu::QiniuClient;
 use astroresearch::clients::ads::AdsClient;
 use astroresearch::clients::arxiv::ArxivClient;
+use astroresearch::clients::llm::{LlmClient, EmbeddingClient};
 use astroresearch::services::download::Downloader;
 use astroresearch::api::handlers::{AppState, self};
 
@@ -83,6 +84,16 @@ async fn main() -> anyhow::Result<()> {
     let ads = AdsClient::new(config.ads_api_key.clone());
     let arxiv = ArxivClient::new();
     let downloader = Downloader::new();
+    let llm = LlmClient::new(
+        config.llm_api_key.clone(),
+        config.llm_api_base.clone(),
+        config.llm_model.clone(),
+    );
+    let embedding = EmbeddingClient::new(
+        config.embedding_api_key.clone(),
+        config.embedding_api_base.clone(),
+        config.embedding_model.clone(),
+    );
 
     let app_state = Arc::new(AppState {
         config: config.clone(),
@@ -91,6 +102,8 @@ async fn main() -> anyhow::Result<()> {
         qiniu,
         ads,
         arxiv,
+        llm,
+        embedding,
         downloader,
         harvest_status: Arc::new(tokio::sync::Mutex::new(astroresearch::services::batch_sync::MetaSyncStatus::new())),
         process_status: Arc::new(tokio::sync::Mutex::new(astroresearch::services::batch_sync::AssetSyncStatus::new())),
@@ -106,7 +119,7 @@ async fn main() -> anyhow::Result<()> {
     let api_routes = Router::new()
         .route("/search", get(handlers::search_papers))
         .route("/download", post(handlers::download_paper))
-        .route("/upload", post(handlers::upload_paper_file))
+        .route("/upload", post(handlers::upload_paper_file).layer(axum::extract::DefaultBodyLimit::max(100 * 1024 * 1024)))
         .route("/no_resource", post(handlers::mark_no_resource))
         .route("/parse", post(handlers::parse_paper))
         .route("/translate", post(handlers::translate_paper))
@@ -133,6 +146,7 @@ async fn main() -> anyhow::Result<()> {
 
     let app = Router::new()
         .nest("/api", api_routes)
+        .nest_service("/api/files", ServeDir::new(&config.library_dir))
         .fallback_service(serve_dir)
         .layer(cors)
         .layer(tower_http::trace::TraceLayer::new_for_http())
diff --git a/src/services/batch/asset.rs b/src/services/batch/asset.rs
index 1462574..8110ce9 100644
--- a/src/services/batch/asset.rs
+++ b/src/services/batch/asset.rs
@@ -72,6 +72,11 @@ impl AssetSync {
         status: Arc<Mutex<AssetSyncStatus>>,
     ) {
         tokio::spawn(async move {
+            let llm_client = crate::clients::llm::LlmClient::new(
+                config.llm_api_key.clone(),
+                config.llm_api_base.clone(),
+                config.llm_model.clone(),
+            );
             let total = bibcodes.len() as i32;
             {
                 let mut s = status.lock().await;
@@ -177,7 +182,17 @@ impl AssetSync {
                         }
 
                         let (pdf_res, html_res) = if !arxiv_id.is_empty() {
-                            downloader.download_arxiv_direct(&arxiv_id, &config.library_dir).await
+                            let res = downloader.download_arxiv_direct(&arxiv_id, &config.library_dir).await;
+                            if res.0.is_ok() || res.1.is_ok() {
+                                res
+                            } else {
+                                {
+                                    let mut s = status.lock().await;
+                                    s.add_log(format!("文献 {} arXiv 通道下载失败，回退尝试 ADS/出版商下载...", bibcode));
+                                }
+                                let doi_opt = if !doi.is_empty() { Some(doi.as_str()) } else { None };
+                                downloader.download_paper(&bibcode, doi_opt, &config.library_dir).await
+                            }
                         } else {
                             let doi_opt = if !doi.is_empty() { Some(doi.as_str()) } else { None };
                             downloader.download_paper(&bibcode, doi_opt, &config.library_dir).await
@@ -186,11 +201,11 @@ impl AssetSync {
                         if pdf_res.is_ok() || html_res.is_ok() {
                             let pdf_rel = match pdf_res {
                                 Ok(p) => Some(p.strip_prefix(&config.library_dir).unwrap_or(&p).to_string_lossy().to_string()),
-                                Err(e) => Some(format!("error: {}", e)),
+                                Err(_) => None, // 只要有一方下载成功，失败的一方字段置空（NULL），避免在 path 字段中留存报错日志
                             };
                             let html_rel = match html_res {
                                 Ok(p) => Some(p.strip_prefix(&config.library_dir).unwrap_or(&p).to_string_lossy().to_string()),
-                                Err(e) => Some(format!("error: {}", e)),
+                                Err(_) => None, // 只要有一方下载成功，失败的一方字段置空（NULL），避免在 path 字段中留存报错日志
                             };
 
                             // 更新路径变量与数据库
@@ -504,7 +519,7 @@ impl AssetSync {
 
                                     match fs::read_to_string(&md_abs) {
                                         Ok(english_markdown) => {
-                                            match crate::services::translation::translate_markdown(&english_markdown, &dict, &config).await {
+                                            match crate::services::translation::translate_markdown(&english_markdown, &dict, &llm_client).await {
                                                 Ok(translated_markdown) => {
                                                     let tr_filename = format!("{}_zh.md", bibcode);
                                                     let tr_dest = config.library_dir.join("Translation").join(&tr_filename);
diff --git a/src/services/download.rs b/src/services/download.rs
index 02e9e59..1897936 100644
--- a/src/services/download.rs
+++ b/src/services/download.rs
@@ -84,21 +84,29 @@ fn build_chrome_headers(referer: Option<&str>) -> HeaderMap {
 
 /// 统一验证码/反爬虫检测（参考 SearXNG 异常处理机制）
 fn detect_anti_bot(content: &str, url: Option<&str>) -> Result<()> {
+    // 如果页面长度大于 150KB，通常是完整渲染的文献正文，忽略反爬/人机验证特征检测以避免误伤（例如正常页面中嵌有 recaptcha 的 sitekey 配置）
+    if content.len() > 150_000 {
+        return Ok(());
+    }
     let lower = content.to_lowercase();
 
-    let cf_patterns = [
+    // 1. 强特征防爬与 WAF 挑战（任何小于 150KB 的内容都做检测）
+    let waf_patterns = [
         "checking your browser", "please wait while we verify",
         "cf-browser-verification", "cf_chl_opt", "just a moment",
         "enable javascript and cookies", "_cf_chl_tk",
         "awswafintegration", "aws waf",
     ];
-    for p in &cf_patterns {
+    for p in &waf_patterns {
         if lower.contains(p) {
-            anyhow::bail!("检测到 Cloudflare 或 AWS WAF 挑战页面（特征: {}）", p);
+            anyhow::bail!("检测到 Cloudflare 或 AWS WAF 挑战/错误页面（特征: {}）", p);
         }
     }
 
-    let captcha_patterns = ["captcha", "recaptcha", "hcaptcha", "verify you are human", "robot check"];
+    let captcha_patterns = [
+        "captcha", "recaptcha", "hcaptcha", "verify you are human", "robot check",
+        "radware bot manager", "shieldsquare",
+    ];
     for p in &captcha_patterns {
         if lower.contains(p) {
             anyhow::bail!("检测到人机验证页面（包含: {}）", p);
@@ -122,6 +130,20 @@ fn detect_anti_bot(content: &str, url: Option<&str>) -> Result<()> {
         }
     }
 
+    // 2. 通用 HTTP 错误与 CDN 关键字检测（仅当内容长度小于 5000 字节时检测，避免在正常文献中误判 CDN 脚本等）
+    if content.len() < 5000 {
+        let err_patterns = [
+            "cloudflare", "service temporarily unavailable", "503 service",
+            "502 bad gateway", "504 gateway timeout", "403 forbidden",
+            "404 not found", "500 internal server error", "site error",
+        ];
+        for p in &err_patterns {
+            if lower.contains(p) {
+                anyhow::bail!("检测到服务错误或防护页面（特征: {}）", p);
+            }
+        }
+    }
+
     Ok(())
 }
 
@@ -348,11 +370,19 @@ impl Downloader {
         });
 
         match handle.await {
-            Ok(res) => {
+            Ok(Ok(())) => {
                 info!("[Obscura 进程内后备通道] 下载并校验成功: {:?}", dest_path);
-                res
+                Ok(())
+            }
+            Ok(Err(e)) => {
+                warn!("[Obscura 进程内后备通道] 下载或校验失败: {:?}", e);
+                let _ = std::fs::remove_file(dest_path); // 清理校验失败的残留文件
+                Err(e)
+            }
+            Err(e) => {
+                let _ = std::fs::remove_file(dest_path); // 清理校验失败的残留文件
+                anyhow::bail!("进程内 Obscura 执行线程异常退出: {:?}", e)
             }
-            Err(e) => anyhow::bail!("进程内 Obscura 执行线程异常退出: {:?}", e),
         }
     }
 
@@ -373,16 +403,23 @@ impl Downloader {
             .context("启动 Obscura 进程失败，请检查 bin/obscura 是否存在且有执行权限")?;
             
         if !status.success() {
+            let _ = tokio::fs::remove_file(dest_path).await; // 清理可能的残留坏文件
             anyhow::bail!("Obscura 进程退出状态非成功: {:?}", status);
         }
         
         // 校验下载得到的文件
         if is_pdf {
             let bytes = tokio::fs::read(dest_path).await?;
-            validate_pdf_content(&bytes)?;
+            if let Err(e) = validate_pdf_content(&bytes) {
+                let _ = tokio::fs::remove_file(dest_path).await; // 清理校验失败的残留文件
+                return Err(e);
+            }
         } else {
             let text = tokio::fs::read_to_string(dest_path).await?;
-            validate_html_content(&text)?;
+            if let Err(e) = validate_html_content(&text) {
+                let _ = tokio::fs::remove_file(dest_path).await; // 清理校验失败的残留文件
+                return Err(e);
+            }
         }
         
         info!("[Obscura 命令行后备通道] 下载并校验成功: {:?}", dest_path);
@@ -604,6 +641,7 @@ impl Downloader {
                 Ok(())
             }
             Err(e) => {
+                let _ = tokio::fs::remove_file(dest_path).await; // 清理直连失败的残留物理文件
                 let err_msg = e.to_string();
                 if err_msg.contains("人机验证") 
                     || err_msg.contains("挑战页面") 
diff --git a/src/services/translation.rs b/src/services/translation.rs
index 8cea49d..1b28a45 100644
--- a/src/services/translation.rs
+++ b/src/services/translation.rs
@@ -3,10 +3,7 @@ use std::collections::{HashMap, HashSet};
 use std::fs::File;
 use std::io::{BufRead, BufReader};
 use std::path::Path;
-use serde::Deserialize;
-use tracing::{info, warn, error};
-
-use crate::Config;
+use tracing::{info, warn};
 
 // 天文学专有名词英汉词典匹配管理
 #[derive(Clone, Debug)]
@@ -102,9 +99,9 @@ impl Dictionary {
 pub async fn translate_markdown(
     markdown_content: &str,
     dict: &Dictionary,
-    config: &Config
+    llm_client: &crate::clients::llm::LlmClient,
 ) -> anyhow::Result<String> {
-    if config.llm_api_key.is_empty() {
+    if llm_client.api_key().is_empty() {
         return Err(anyhow::anyhow!("本地配置中缺少 LLM_API_KEY"));
     }
 
@@ -129,63 +126,16 @@ pub async fn translate_markdown(
         terms_instruction
     );
 
-    info!("正在请求大模型开展中英翻译。所选大模型: {}", config.llm_model);
+    info!("正在请求大模型开展中英翻译。所选大模型: {}", llm_client.model());
     let start_time = std::time::Instant::now();
 
-    let client = reqwest::Client::new();
-    let url = format!("{}/chat/completions", config.llm_api_base);
-
-    let payload = serde_json::json!({
-        "model": config.llm_model,
-        "messages": [
-            {
-                "role": "system",
-                "content": system_prompt
-            },
-            {
-                "role": "user",
-                "content": markdown_content
-            }
-        ],
-        "temperature": 0.3
-    });
-
-    let response = client.post(&url)
-        .header("Authorization", format!("Bearer {}", config.llm_api_key))
-        .header("Content-Type", "application/json")
-        .json(&payload)
-        .send()
-        .await?;
-
-    if !response.status().is_success() {
-        let status = response.status();
-        let body = response.text().await.unwrap_or_default();
-        error!("LLM 翻译接口调用失败: 状态码={}, 报错={}", status, body);
-        return Err(anyhow::anyhow!("大模型接口返回错误状态: {}", status));
-    }
-
-    #[derive(Deserialize)]
-    struct Message {
-        content: String,
-    }
-
-    #[derive(Deserialize)]
-    struct Choice {
-        message: Message,
-    }
-
-    #[derive(Deserialize)]
-    struct LLMResponse {
-        choices: Vec<Choice>,
-    }
-
-    let res_data: LLMResponse = response.json().await?;
-    if let Some(choice) = res_data.choices.first() {
-        let duration = start_time.elapsed();
-        info!("LLM 翻译成功。所选大模型: {}, 耗时: {:?}, 译文字符数: {}", config.llm_model, duration, choice.message.content.len());
-        Ok(choice.message.content.clone())
-    } else {
-        Err(anyhow::anyhow!("大模型返回空翻译选项集"))
+    match llm_client.chat_completion(&system_prompt, markdown_content).await {
+        Ok(translated) => {
+            let duration = start_time.elapsed();
+            info!("LLM 翻译成功。所选大模型: {}, 耗时: {:?}, 译文字符数: {}", llm_client.model(), duration, translated.len());
+            Ok(translated)
+        }
+        Err(e) => Err(e),
     }
 }
 
diff --git a/tests/live_llm_test.rs b/tests/live_llm_test.rs
new file mode 100644
index 0000000..3559c9b
--- /dev/null
+++ b/tests/live_llm_test.rs
@@ -0,0 +1,60 @@
+// tests/live_llm_test.rs
+use astroresearch::Config;
+use astroresearch::clients::llm::{LlmClient, EmbeddingClient};
+
+#[tokio::test]
+async fn test_live_llm_and_embedding() -> anyhow::Result<()> {
+    let config = Config::from_env();
+    
+    println!("================= 开始大模型与向量模型真实网络集成测试 =================");
+
+    // 1. 测试 LlmClient
+    if config.llm_api_key.is_empty() {
+        println!("警告: 未在环境配置中检测到 LLM_API_KEY，跳过 LlmClient 集成测试。");
+    } else {
+        println!("测试大模型: {} (API Base: {})", config.llm_model, config.llm_api_base);
+        let llm = LlmClient::new(
+            config.llm_api_key.clone(),
+            config.llm_api_base.clone(),
+            config.llm_model.clone(),
+        );
+
+        match llm.chat_completion("You are a helpful assistant.", "Say Hello!").await {
+            Ok(reply) => {
+                println!("LlmClient 响应成功: {}", reply.trim());
+                assert!(!reply.trim().is_empty(), "错误: 大模型返回了空响应");
+            }
+            Err(e) => {
+                panic!("LlmClient 接口调用失败: {}", e);
+            }
+        }
+    }
+
+    // 2. 测试 EmbeddingClient
+    if config.embedding_api_key.is_empty() {
+        println!("警告: 未在环境配置中检测到 EMBEDDING_API_KEY，跳过 EmbeddingClient 集成测试。");
+    } else {
+        println!("测试向量模型: {} (API Base: {})", config.embedding_model, config.embedding_api_base);
+        let embedding_client = EmbeddingClient::new(
+            config.embedding_api_key.clone(),
+            config.embedding_api_base.clone(),
+            config.embedding_model.clone(),
+        );
+
+        let test_text = "active galactic nucleus";
+        match embedding_client.create_embedding(test_text).await {
+            Ok(vector) => {
+                println!("EmbeddingClient 响应成功！向量维度: {}", vector.len());
+                assert!(!vector.is_empty(), "错误: 向量数据为空");
+                let preview_len = std::cmp::min(5, vector.len());
+                println!("前 {} 个向量数值样例: {:?}", preview_len, &vector[..preview_len]);
+            }
+            Err(e) => {
+                panic!("EmbeddingClient 接口调用失败: {}", e);
+            }
+        }
+    }
+
+    println!("================= 大模型与向量模型真实网络集成测试完成 =================");
+    Ok(())
+}