@charset "utf-8";

/* STACK · 瀑布流风 —— CSS multi-column 排版，卡片高度按位错落 */

:root {
    --hue: #0891b2;
    --hue-w: #e6f6fa;
    --face: #ffffff;
    --dust: #f5f6f8;
    --edge: #e4e6eb;
    --deep: #15181d;
    --calm: #5c6472;
    --soft: #99a0ab;
    --gap: 13px;
}

:is([data-v="b" i],[data-v="f" i],[data-v="j" i],[data-v="n" i],[data-v="r" i],[data-v="v" i]) { --hue: #c2410c; --hue-w: #fdf0e8; }
:is([data-v="c" i],[data-v="g" i],[data-v="k" i],[data-v="o" i],[data-v="s" i],[data-v="w" i]) { --hue: #6d28d9; --hue-w: #f2ecfd; }

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--dust); }

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, Arial, sans-serif;
    font-size: 14px; line-height: 1.6; color: var(--deep);
    background: var(--face); max-width: 840px; margin: 0 auto;
}

img { display: block; border: 0; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
.gone { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); opacity: 0; }

/* 骨架：源码 core → menu → hd → btm */
.tower { display: grid; grid-template-columns: minmax(0,1fr); grid-template-areas: "hd" "menu" "core" "btm"; min-height: 100vh; }
.tower-hd { grid-area: hd; }
.tower-menu { grid-area: menu; }
.tower-core { grid-area: core; }
.tower-btm { grid-area: btm; }

.tower-hd { display: flex; align-items: center; gap: 11px; padding: 13px var(--gap); background: var(--dust); border-bottom: 1px solid var(--edge); }
.hd-mark img { height: 33px; width: auto; }
.quiz { flex: 1 1 auto; display: flex; min-width: 0; height: 36px; background: var(--dust); border-radius: 18px; overflow: hidden; }
.quiz-f { flex: 1 1 auto; min-width: 0; padding: 0 14px; font-size: 13px; color: var(--deep); background: transparent; border: 0; outline: 0; }
.quiz-f::placeholder { color: var(--soft); }
.quiz-b { flex: 0 0 auto; padding: 0 16px; font-size: 13px; font-weight: 600; color: #fff; background: var(--hue); }

.tower-menu { padding: 10px var(--gap) 6px; border-bottom: 1px solid var(--edge); }
.menu-a { display: inline-block; margin: 0 6px 6px 0; padding: 5px 12px; font-size: 12.5px; color: var(--calm); background: var(--dust); border-radius: 14px; }
.menu-a:hover { color: var(--hue); background: var(--hue-w); }
.menu-a--set { color: #fff; background: var(--hue); }

.title-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 16px var(--gap) 10px; }
.title-txt { font-size: 16px; font-weight: 800; }
.title-txt::after { content: ""; display: block; width: 26px; height: 3px; margin-top: 4px; border-radius: 2px; background: var(--hue); }
.title-lnk { font-size: 12px; color: var(--soft); }
.title-lnk:hover { color: var(--hue); }

/* 瀑布流：多栏 + 禁止卡片跨栏断开 */
.fall { columns: 2; column-gap: 10px; padding: 0 var(--gap) 8px; }
@media (min-width: 481px) { .fall { columns: 3; } }
@media (min-width: 721px) { .fall { columns: 4; } }

.drop { break-inside: avoid; page-break-inside: avoid; margin: 0 0 12px; }
.drop-face { position: relative; aspect-ratio: 2 / 3; overflow: hidden; border-radius: 8px; background: var(--dust) url("../img/load.gif") center / 34px 34px no-repeat; }
/* 按序错落，制造真实瀑布参差 */
.drop:nth-child(3n) .drop-face { aspect-ratio: 3 / 4; }
.drop:nth-child(5n) .drop-face { aspect-ratio: 1 / 1; }
.drop:nth-child(7n) .drop-face { aspect-ratio: 4 / 5; }

.drop-img { width: 100%; height: 100%; object-fit: cover; }
.drop-chip { position: absolute; left: 6px; top: 6px; padding: 1px 7px; font-size: 11px; color: #fff; background: rgba(21,24,29,.72); border-radius: 10px; }
.drop-t { display: block; margin-top: 6px; font-size: 13px; font-weight: 600; line-height: 1.45; }
.drop-s { display: block; font-size: 11px; color: var(--soft); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.leafs { display: flex; flex-wrap: wrap; justify-content: center; gap: 7px; padding: 12px var(--gap) 20px; }
.leaf-k { min-width: 38px; height: 36px; padding: 0 13px; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; color: var(--calm); background: var(--dust); border-radius: 18px; }
.leaf-k:hover, .leaf-k--go { color: #fff; background: var(--hue); }

/* 详情 */
.spot { display: grid; grid-template-columns: minmax(0,1fr); grid-template-areas: "hd" "facts" "btns" "para"; }
.spot-hd { grid-area: hd; display: flex; gap: 13px; padding: 16px var(--gap) 12px; background: linear-gradient(180deg, var(--hue-w), var(--face)); }
.spot-cover { flex: 0 0 112px; aspect-ratio: 2 / 3; border-radius: 10px; overflow: hidden; background: var(--dust) url("../img/load.gif") center / 34px 34px no-repeat; box-shadow: 0 6px 18px rgba(21,24,29,.14); }
.spot-cover img { width: 100%; height: 100%; object-fit: cover; }
.spot-word { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; justify-content: center; }
.spot-h1 { font-size: clamp(18px, 5.2vw, 24px); font-weight: 800; line-height: 1.3; }
.spot-chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 9px; }
.spot-chip { padding: 2px 9px; font-size: 11.5px; color: var(--calm); background: rgba(255,255,255,.8); border-radius: 11px; }
.spot-chip--key { color: #fff; background: var(--hue); }

.list-facts { grid-area: facts; padding: 12px var(--gap) 0; }
.fct { display: flex; gap: 8px; padding: 5px 0; font-size: 12.5px; }
.fct-a { flex: 0 0 42px; color: var(--soft); }
.fct-b { flex: 1 1 auto; min-width: 0; color: var(--calm); }
.fct-b a { color: var(--hue); }

.spot-btns { grid-area: btns; display: flex; gap: 10px; padding: 13px var(--gap) 0; }
.btn-x, .btn-y { flex: 1 1 0; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 700; border-radius: 22px; }
.btn-x { color: #fff; background: var(--hue); }
.btn-y { color: var(--hue); background: var(--hue-w); }

.para { grid-area: para; padding: 16px var(--gap) 4px; }
.para-t { margin-bottom: 8px; font-size: 15px; font-weight: 800; }
.para-b { margin-bottom: 9px; font-size: 13.5px; line-height: 1.9; color: var(--calm); }
.para-b strong { color: var(--deep); }

.linkrow { display: flex; flex-wrap: wrap; gap: 6px; padding: 2px var(--gap) 16px; }
.linkrow-a { max-width: 100%; padding: 4px 10px; font-size: 12px; color: var(--calm); background: var(--dust); border-radius: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.linkrow-a:hover { color: var(--hue); background: var(--hue-w); }

.tower-btm { margin-top: 12px; padding: 16px var(--gap) 22px; background: var(--dust); }
.btm-fr { margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--edge); font-size: 12px; text-align: center; color: var(--soft); }
.btm-fr b { display: block; margin-bottom: 6px; font-size: 13px; color: var(--deep); }
.btm-fr a { display: inline-block; margin: 2px 7px; color: var(--calm); }
.btm-fr a:hover { color: var(--hue); }
.btm-tx { font-size: 11.5px; line-height: 1.85; color: var(--soft); text-align: center; }
.btm-cp { margin-top: 10px; font-size: 11.5px; color: var(--soft); text-align: center; }
.btm-cp a { margin: 0 5px; }
.btm-cp a:hover { color: var(--hue); }