/* ============ 中国自驾游攻略平台 · 基础与地图 ============ */
:root{
  --bg:#0b1320; --bg2:#0e1828; --panel:#111c2e; --card:#152238; --card2:#1a2a44;
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.14);
  --tx:#e9f0fa; --tx2:#a9bcd4; --tx3:#7b8ea8;
  --amber:#ffb545; --amber2:#f59e2c; --red:#e0343a; --green:#4ed08a; --blue:#4aa8ff;
  --ocean:#08182b; --land:#1d3a55; --land2:#26496b;
  --r:14px; --shadow:0 18px 40px rgba(0,0,0,.42);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background-color:var(--bg);background-image:radial-gradient(1200px 700px at 18% -10%,#16293f 0%,rgba(11,19,32,0) 60%);
  color:var(--tx);font:15px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;overflow:hidden;
}
button,input,select{font-family:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
.hidden{display:none!important}
.card{background:linear-gradient(180deg,var(--card),var(--card2));border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:8px}
::-webkit-scrollbar-track{background:transparent}

#app{display:flex;flex-direction:column;height:100vh;height:100dvh}

/* ---------- 顶栏 ---------- */
.topbar{display:flex;align-items:center;gap:22px;padding:0 18px;height:62px;flex:none;
  background:rgba(9,16,28,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);z-index:40}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:inherit}
.brand-frame{width:22px;height:30px;border:3px solid var(--red);border-radius:2px;display:block;
  box-shadow:0 0 14px rgba(224,52,58,.5)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;letter-spacing:.06em}
.brand-text em{font-style:normal;font-size:11px;color:var(--tx3);letter-spacing:.22em}
.topnav{display:flex;gap:6px}
.topnav button{padding:8px 14px;border-radius:999px;font-size:14px;color:var(--tx2);transition:.22s}
.topnav button:hover{background:rgba(255,255,255,.07);color:var(--tx)}
.topnav button.active{background:rgba(255,181,69,.16);color:var(--amber);box-shadow:inset 0 0 0 1px rgba(255,181,69,.35)}
.top-search{margin-left:auto;position:relative;display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:999px;padding:7px 14px;width:260px}
.top-search .ico{color:var(--tx3)}
.top-search input{background:none;border:0;outline:none;width:100%;font-size:14px}
.top-search input::placeholder{color:var(--tx3)}
.search-results{position:absolute;top:48px;left:0;right:0;background:var(--panel);border:1px solid var(--line2);
  border-radius:12px;overflow:hidden;box-shadow:var(--shadow);max-height:60vh;overflow-y:auto;z-index:60}
.sr-item{display:flex;gap:10px;align-items:center;padding:10px 14px;cursor:pointer;border-bottom:1px solid var(--line)}
.sr-item:last-child{border-bottom:0}
.sr-item:hover{background:rgba(255,181,69,.12)}
.sr-item b{font-size:14px}
.sr-item span{font-size:12px;color:var(--tx3);margin-left:auto}

/* ---------- 主舞台 ---------- */
.stage{flex:1;display:flex;min-height:0}
.map-panel{flex:1;position:relative;min-width:0;display:flex;flex-direction:column}
.map-toolbar{position:absolute;top:14px;left:16px;right:16px;display:flex;align-items:center;gap:10px;z-index:12;pointer-events:none}
.map-toolbar>*{pointer-events:auto}
.tool-group{display:flex;flex-direction:column;gap:6px}
.tool-group button{width:34px;height:34px;border-radius:10px;background:rgba(13,23,39,.82);
  border:1px solid var(--line2);font-size:17px;color:var(--tx2);backdrop-filter:blur(8px);transition:.2s}
.tool-group button:hover{color:var(--amber);border-color:rgba(255,181,69,.5)}
.pill{padding:8px 15px;border-radius:999px;background:rgba(13,23,39,.82);border:1px solid var(--line2);
  font-size:13px;color:var(--tx2);backdrop-filter:blur(8px);transition:.2s}
.pill:hover:not(:disabled){color:var(--amber);border-color:rgba(255,181,69,.5)}
.pill:disabled{opacity:.35;cursor:default}
.map-legend{margin-left:auto;display:flex;gap:14px;font-size:12px;color:var(--tx2);
  background:rgba(13,23,39,.78);border:1px solid var(--line);border-radius:999px;padding:7px 15px;backdrop-filter:blur(8px)}
.lg{display:flex;align-items:center;gap:6px}
.lg::before{content:"";width:14px;height:8px;border-radius:3px;background:#2b4a6f}
.lg-hot::before{background:linear-gradient(90deg,#f59e2c,#e0343a)}
.lg-line::before{height:3px;background:var(--amber);box-shadow:0 0 8px var(--amber)}
.lg-spot::before{width:9px;height:9px;border-radius:50%;background:#fff;box-shadow:0 0 8px #fff}
button.lg{background:none;border:0;color:inherit;font:inherit;cursor:pointer;padding:0;transition:.16s}
button.lg::before{content:"G318";width:auto;height:15px;padding:0 4px;border-radius:4px;display:grid;place-items:center;
  background:rgba(255,181,69,.16);border:1px solid var(--amber);color:var(--amber);font-size:8.5px;font-weight:800;letter-spacing:.03em}
button.lg.lg-shield:not(.on){opacity:.4;filter:grayscale(1)}
button.lg:hover{color:var(--amber)}

#map-wrap{position:absolute;inset:0;overflow:hidden;cursor:grab}
#map-wrap.dragging{cursor:grabbing}
#map{width:100%;height:100%;display:block;touch-action:none}
.map-loading{position:absolute;inset:0;display:grid;place-items:center;color:var(--tx3);font-size:13px;
  letter-spacing:.15em;background:var(--ocean)}
.map-tip{position:absolute;z-index:30;pointer-events:none;background:rgba(9,17,30,.95);
  border:1px solid rgba(255,181,69,.4);border-radius:12px;padding:10px 13px;min-width:190px;max-width:280px;
  box-shadow:var(--shadow);transform:translate(-50%,-124%);transition:opacity .18s}
.map-tip b{display:block;font-size:14px;color:var(--amber);margin-bottom:3px}
.map-tip .r{font-size:12px;color:var(--tx2);display:flex;justify-content:space-between;gap:12px}
.map-tip .r+.r{margin-top:2px}
.map-status{position:absolute;left:16px;bottom:14px;display:flex;align-items:center;gap:9px;font-size:12.5px;
  color:var(--tx2);background:rgba(13,23,39,.78);border:1px solid var(--line);border-radius:999px;padding:7px 15px;
  backdrop-filter:blur(8px);z-index:12}
.map-status .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}

/* SVG 地图 */
.prov{fill:#16324f;stroke:#2d4f75;stroke-width:.7;cursor:pointer;transition:fill .3s}
.prov:hover{fill:#20547f}
.prov.has-routes{fill:#1b3d5e}
.prov.active{fill:#2b5f8e;stroke:var(--amber);stroke-width:1.2}
.prov.dim{fill:#122538;cursor:default}
.sea-line{fill:none;stroke:#3b5f85;stroke-width:1.4;stroke-dasharray:7 7;opacity:.85}
.prov-label{fill:#8ea9c6;text-anchor:middle;pointer-events:none;paint-order:stroke;
  stroke:rgba(6,16,29,.7);stroke-linejoin:round;transition:fill .3s}
.prov-label.hot{fill:#ffd08a}
.cap-dot{fill:#cbd9ea;pointer-events:none}
.cap-label{fill:#7e97b3;font-size:9.5px;text-anchor:middle;pointer-events:none}
.route-line{fill:none;stroke:var(--amber);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;
  filter:drop-shadow(0 0 6px rgba(255,181,69,.75));cursor:pointer}
.route-line.ghost{stroke:rgba(255,181,69,.35);stroke-width:1.6;filter:none}
.route-line.ghost:hover{stroke:rgba(255,181,69,.85);stroke-width:2.4}
.route-halo{fill:none;stroke:rgba(255,181,69,.16);stroke-width:9;stroke-linecap:round}
.node-dot{fill:#0d1828;stroke:var(--amber);stroke-width:2}
.node-dot.major{fill:var(--amber);stroke:#fff}
.node-label{fill:#ffe4b5;text-anchor:middle;pointer-events:none;paint-order:stroke;
  stroke:rgba(6,14,26,.85);stroke-linejoin:round}
.spot-dot{fill:#fff;stroke:var(--amber);cursor:pointer}
.spot-dot:hover{fill:var(--amber)}
.draw-anim{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:draw 1.5s var(--ease) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.pop{animation:pop .5s var(--ease) both}
@keyframes pop{from{opacity:0;transform:scale(.4)}to{opacity:1;transform:scale(1)}}

/* ---------- 侧栏 ---------- */
.side-panel{width:432px;flex:none;background:linear-gradient(180deg,var(--panel),#0d1727);
  border-left:1px solid var(--line);overflow-y:auto;overscroll-behavior:contain;position:relative}
.sp-inner{padding:20px 20px 34px}
.sp-head{margin-bottom:16px}
.eyebrow{font-size:11.5px;letter-spacing:.24em;color:var(--amber);text-transform:uppercase}
.sp-title{font-size:23px;margin:6px 0 4px;letter-spacing:.02em}
.sp-sub{color:var(--tx2);font-size:13.5px}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin:14px 0 6px}
.chip{padding:6px 12px;border-radius:999px;font-size:12.5px;color:var(--tx2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);transition:.2s}
.chip:hover{border-color:rgba(255,181,69,.45);color:var(--tx)}
.chip.on{background:rgba(255,181,69,.18);border-color:rgba(255,181,69,.55);color:var(--amber)}
.chip i{font-style:normal;margin-right:5px}
.sort-row{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--tx3);margin-top:10px}
.sort-row .chip{padding:4px 10px;font-size:12px}
.result-count{margin-left:auto;color:var(--tx3)}

.route-card{position:relative;display:block;width:100%;text-align:left;background:linear-gradient(180deg,var(--card),#132034);
  border:1px solid var(--line);border-radius:var(--r);padding:14px 15px;margin-top:12px;overflow:hidden;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s}
.route-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--amber);opacity:.75}
.route-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(0,0,0,.5);border-color:rgba(255,181,69,.42)}
.route-card:hover::before{opacity:1;box-shadow:0 0 14px var(--amber)}
.rc-top{display:flex;align-items:center;gap:8px;margin-bottom:5px}
.rc-rank{font-size:11px;font-weight:700;color:#0d1828;background:var(--amber);border-radius:5px;padding:1px 6px}
.rc-name{font-size:15.5px;font-weight:600;letter-spacing:.01em}
.rc-region{font-size:11px;color:var(--tx3);border:1px solid var(--line2);border-radius:5px;padding:1px 6px;margin-left:auto}
.rc-desc{font-size:12.8px;color:var(--tx2);margin:4px 0 9px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rc-stats{display:flex;gap:14px;font-size:12px;color:var(--tx3);flex-wrap:wrap}
.rc-stats b{color:var(--tx);font-weight:600}
.rc-tags{display:flex;gap:6px;margin-top:9px;flex-wrap:wrap}
.tag{font-size:11px;padding:2px 8px;border-radius:5px;background:rgba(74,168,255,.13);color:#8cc6ff;
  border:1px solid rgba(74,168,255,.28)}
.tag.amber{background:rgba(255,181,69,.14);color:var(--amber);border-color:rgba(255,181,69,.32)}
.tag.green{background:rgba(78,208,138,.13);color:var(--green);border-color:rgba(78,208,138,.3)}
.tag.red{background:rgba(224,52,58,.14);color:#ff8b8f;border-color:rgba(224,52,58,.35)}
.rc-bar{height:4px;border-radius:4px;background:rgba(255,255,255,.08);margin-top:11px;overflow:hidden}
.rc-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--amber2),var(--amber));border-radius:4px}

.empty{padding:34px 8px;text-align:center;color:var(--tx3);font-size:13.5px}
.empty b{display:block;color:var(--tx2);font-size:15px;margin-bottom:6px}
.foot-note{margin-top:18px;font-size:11.5px;color:var(--tx3);border-top:1px dashed var(--line);padding-top:12px}