/* ===========================================================
   文章列表 / AI 导航站
   =========================================================== */

/* ---------------- 通用页头 ---------------- */
.page-hero { padding: 48px 0 8px; position: relative; z-index: 1; }
.page-hero .eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: .18em;
  color: var(--lime); text-transform: uppercase;
}
.page-hero h1 {
  font-size: clamp(30px, 4.4vw, 46px); line-height: 1.12; letter-spacing: -.035em;
  font-weight: 780; margin: 14px 0 0;
}
.page-hero p {
  color: var(--muted); font-size: 14.5px; line-height: 1.8;
  max-width: 600px; margin: 14px 0 0;
}
.hero-stats { display: flex; gap: 34px; margin-top: 26px; flex-wrap: wrap; }
.hero-stats .st { display: flex; flex-direction: column; gap: 2px; }
.hero-stats .st b {
  font-family: var(--mono); font-size: 21px; font-weight: 600; color: var(--text);
  letter-spacing: -.03em;
}
.hero-stats .st span { font-size: 11px; color: var(--dim); letter-spacing: .06em; }

/* ---------------- 筛选条 ---------------- */
.filter-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin: 30px 0 22px; padding-bottom: 18px; border-bottom: 1px solid var(--line);
}
.chips { display: flex; gap: 7px; flex-wrap: wrap; }
.chips button {
  padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line-2);
  background: transparent; color: var(--text-2); font-size: 12.5px;
  cursor: pointer; transition: .15s; white-space: nowrap;
}
.chips button:hover { border-color: #3d475a; color: var(--text); }
.chips button.on { background: var(--lime); border-color: var(--lime); color: #07080a; font-weight: 600; }
.chips button em { font-style: normal; opacity: .5; margin-left: 4px; font-family: var(--mono); font-size: 10.5px; }
.chips button.on em { opacity: .55; }

.filter-bar .search {
  margin-left: auto; min-width: 220px; max-width: 280px;
  background: var(--panel); border: 1px solid var(--line-2); color: var(--text);
  border-radius: 10px; padding: 9px 13px; font-size: 13px; outline: none;
  transition: border-color .15s;
}
.filter-bar .search:focus { border-color: rgba(216,255,62,.45); }
.filter-bar .count {
  font-family: var(--mono); font-size: 11.5px; color: var(--dim); white-space: nowrap;
}

/* ---------------- 精选大卡 ---------------- */
.feat-card {
  display: grid; grid-template-columns: 1fr 300px; gap: 0;
  background: linear-gradient(120deg, rgba(216,255,62,.055), rgba(154,140,255,.04) 55%, transparent);
  border: 1px solid var(--line-2); border-radius: 18px; overflow: hidden;
  transition: border-color .18s, transform .18s;
}
.feat-card:hover { border-color: rgba(216,255,62,.3); transform: translateY(-2px); }
.feat-main { padding: 32px 34px; }
.feat-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em;
  color: var(--lime); text-transform: uppercase;
}
.feat-card h2 {
  font-size: clamp(21px, 2.6vw, 28px); line-height: 1.32; letter-spacing: -.025em;
  margin: 12px 0 0; font-weight: 740;
}
.feat-card p { font-size: 13.5px; color: var(--muted); line-height: 1.8; margin: 12px 0 0; }
.feat-foot {
  display: flex; align-items: center; gap: 12px; margin-top: 20px;
  font-family: var(--mono); font-size: 11.5px; color: var(--dim); flex-wrap: wrap;
}
.feat-side {
  border-left: 1px solid var(--line); padding: 32px 26px;
  display: flex; flex-direction: column; justify-content: center; gap: 16px;
  background: rgba(0,0,0,.18);
}
.feat-side .row { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.feat-side .k { font-size: 11.5px; color: var(--dim); }
.feat-side .v { font-family: var(--mono); font-size: 13px; color: var(--text-2); }
.feat-side .go {
  margin-top: 6px; display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 0; border-radius: 10px; background: var(--lime); color: #07080a;
  font-size: 13px; font-weight: 650;
}

/* ---------------- 文章网格 ---------------- */
.arc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.arc-card {
  display: flex; flex-direction: column; position: relative;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line); border-radius: 15px; padding: 22px;
  transition: border-color .16s, transform .16s, box-shadow .16s;
  overflow: hidden;
}
.arc-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: var(--accent, var(--lime)); opacity: 0; transition: opacity .18s;
}
.arc-card:hover { border-color: var(--line-2); transform: translateY(-3px); box-shadow: 0 16px 40px -22px rgba(0,0,0,.9); }
.arc-card:hover::before { opacity: .85; }

.arc-meta {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .05em;
  color: var(--dim);
}
.arc-meta .cat { color: var(--accent, var(--lime)); }
.arc-card h3 {
  font-size: 16.5px; line-height: 1.48; letter-spacing: -.015em;
  margin: 12px 0 0; font-weight: 660;
}
.arc-card p {
  font-size: 12.5px; line-height: 1.75; color: var(--muted); margin: 10px 0 0;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.arc-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  margin-top: auto; padding-top: 18px;
  font-family: var(--mono); font-size: 11px; color: var(--dim);
}
.arc-foot .tgs { display: flex; gap: 5px; overflow: hidden; }
.arc-foot .tag {
  font-size: 10px; padding: 2px 7px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--dim); white-space: nowrap;
}

/* ---------------- 分页 ---------------- */
.pager {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin: 40px 0 0;
}
.pager button {
  min-width: 36px; height: 36px; padding: 0 12px; border-radius: 9px;
  border: 1px solid var(--line-2); background: transparent; color: var(--text-2);
  font-size: 12.5px; cursor: pointer; transition: .15s; font-family: var(--mono);
}
.pager button:hover:not(:disabled) { border-color: var(--lime); color: var(--lime); }
.pager button.on { background: var(--lime); border-color: var(--lime); color: #07080a; font-weight: 600; }
.pager button:disabled { opacity: .35; cursor: not-allowed; }

/* ---------------- 状态位 ---------------- */
.state-box {
  grid-column: 1 / -1; padding: 70px 20px; text-align: center;
  color: var(--dim); font-size: 13px;
}
.state-box .icon { font-size: 22px; opacity: .4; display: block; margin-bottom: 10px; }
.state-box button {
  margin-top: 14px; padding: 8px 18px; border-radius: 9px;
  border: 1px solid var(--line-2); background: transparent; color: var(--text-2);
  font-size: 12.5px; cursor: pointer;
}
.state-box button:hover { border-color: var(--lime); color: var(--lime); }

.skeleton {
  border-radius: 15px; height: 210px;
  background: linear-gradient(100deg, #10141b 30%, #171d26 50%, #10141b 70%);
  background-size: 220% 100%; animation: shimmer 1.3s infinite linear;
}
@keyframes shimmer { from { background-position: 120% 0; } to { background-position: -80% 0; } }

/* ---------------- 导航站 ---------------- */
.nav-search-wrap { display: flex; gap: 10px; margin: 28px 0 0; flex-wrap: wrap; }
.nav-search-input {
  flex: 1; min-width: 260px; background: var(--panel); border: 1px solid var(--line-2);
  color: var(--text); border-radius: 12px; padding: 12px 16px; font-size: 14px;
  outline: none; transition: border-color .15s;
}
.nav-search-input:focus { border-color: rgba(216,255,62,.45); }
.nav-search-input::placeholder { color: var(--dim); }

.nav-sec { padding: 34px 0 4px; }
.nav-sec-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; }
.nav-sec-head .ico { font-size: 15px; opacity: .85; }
.nav-sec-head h3 { font-size: 16px; margin: 0; font-weight: 680; letter-spacing: -.01em; }
.nav-sec-head .n {
  font-family: var(--mono); font-size: 10.5px; color: var(--dim);
  border: 1px solid var(--line); border-radius: 999px; padding: 1px 7px;
}
.nav-sec-head .desc { font-size: 12px; color: var(--dim); margin-left: auto; }

.site-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }

.site-card {
  display: flex; flex-direction: column; position: relative;
  background: var(--panel); border: 1px solid var(--line); border-radius: 13px;
  padding: 16px; transition: border-color .16s, transform .16s, background .16s;
}
.site-card:hover {
  border-color: var(--line-2); transform: translateY(-2px);
  background: var(--panel-2);
}
.site-card:hover .site-arrow { opacity: 1; transform: translate(2px, -2px); }
.site-arrow {
  position: absolute; top: 14px; right: 14px; font-size: 11px; color: var(--dim);
  opacity: 0; transition: .16s;
}

.site-top { display: flex; align-items: center; gap: 10px; }
.site-icon {
  width: 30px; height: 30px; border-radius: 9px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; background: rgba(255,255,255,.04); border: 1px solid var(--line);
}
.site-name { font-size: 13.5px; font-weight: 640; letter-spacing: -.01em; }
.site-host { font-family: var(--mono); font-size: 10px; color: var(--dim); margin-top: 1px; }
.site-desc {
  font-size: 11.8px; line-height: 1.7; color: var(--muted); margin: 10px 0 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.site-tags { display: flex; gap: 5px; flex-wrap: wrap; margin-top: auto; padding-top: 12px; }
.site-tags .tag {
  font-size: 10px; padding: 2px 7px; border-radius: 5px;
  background: rgba(255,255,255,.04); color: var(--dim); font-family: var(--mono);
}

/* 语言 / 定价徽标 */
.badge {
  font-size: 9.5px; font-family: var(--mono); letter-spacing: .04em;
  padding: 2px 6px; border-radius: 4px; white-space: nowrap;
}
.badge.free { color: #8fe388; background: rgba(143,227,136,.1); }
.badge.freemium { color: #ffd166; background: rgba(255,209,102,.1); }
.badge.paid { color: #ff8f6b; background: rgba(255,143,107,.1); }
.badge.oss { color: #45e0c0; background: rgba(69,224,192,.1); }

@media (max-width: 1080px) {
  .arc-grid { grid-template-columns: repeat(2, 1fr); }
  .site-grid { grid-template-columns: repeat(3, 1fr); }
  .feat-card { grid-template-columns: 1fr; }
  .feat-side { border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 760px) {
  .arc-grid { grid-template-columns: 1fr; }
  .site-grid { grid-template-columns: repeat(2, 1fr); }
  .filter-bar .search { margin-left: 0; width: 100%; max-width: none; }
  .hero-stats { gap: 26px; }
  .nav-sec-head .desc { display: none; }
  .nav-sec-head h3 { font-size: 15px; white-space: nowrap; }
  .nav-sec-head { gap: 9px; }
}
@media (max-width: 480px) {
  .site-grid { grid-template-columns: 1fr; }
}