/* 日月潭水域活動產業聯盟 官網樣式
   版面概念：湖面深藍為主色、晨光橘為重點色；共用頁首、頁尾 */
:root{
  --bg:#F3F5F2;--surface:#FFFFFF;--ink:#13323A;--muted:#46595E;--line:#D6DFDC;
  --lake:#1D5C66;--lake-deep:#0F2E35;--on-lake:#EEF4F2;--on-lake-muted:#C3DAD7;
  --sun:#B8641F;--sun-lt:#F0A35E;--sun-soft:#F6E7D8;--tint:#E3EEEC;--ok:#2E7D5B;
  --serif:'Noto Serif TC','Songti TC',serif;
  --sans:'Noto Sans TC','PingFang TC','Microsoft JhengHei',sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.75}
img{max-width:100%;display:block}
h1,h2,h3{font-family:var(--serif);line-height:1.3;margin:0;text-wrap:balance;word-break:keep-all}
p{margin:0}
a{color:inherit}
[hidden]{display:none!important}
.wrap{max-width:1080px;margin:0 auto;padding-inline:20px}
.nb{display:inline-block}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:100}
.skip:focus{left:8px}

/* 頁首 */
.hdr{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;line-height:1.3;min-width:0}
.logo-mark{flex:none;width:34px;height:38px;display:block}
.logo small{display:block;font-size:10.5px;color:var(--muted);font-weight:500;letter-spacing:.08em}
.nav{display:flex;gap:2px;align-items:center}
.nav a{text-decoration:none;font-size:15px;padding:8px 12px;border-radius:8px;color:var(--muted);font-weight:500}
.nav a:hover{color:var(--lake)}
.nav a[aria-current="page"]{color:var(--lake);background:var(--tint);font-weight:700}
.nav .cta{background:var(--sun-lt);color:var(--lake-deep)!important;font-weight:700;margin-left:6px}
.burger{display:none;font:inherit;font-size:15px;font-weight:700;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:7px 14px;cursor:pointer}

/* 共用 */
.sec{padding-block:56px;display:flex;flex-direction:column;gap:18px}
.sec+.sec{border-top:1px solid var(--line)}
.page-head{background:var(--lake-deep);color:var(--on-lake)}
.page-head .wrap{padding-block:44px 52px;display:flex;flex-direction:column;gap:10px}
.page-head h1{font-size:clamp(28px,4.4vw,44px);color:#fff}
.page-head p{color:var(--on-lake-muted);font-size:17px;max-width:36em}
.page-head .eye{color:var(--sun-lt)}
.eye{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.2em;color:var(--sun);font-weight:700}
.eye::before{content:"";width:28px;height:2px;background:currentColor}
h2{font-size:30px}
.lead{font-size:18px}
.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-weight:700;padding:12px 22px;border-radius:999px;font-size:15px;border:none;cursor:pointer;font-family:inherit;line-height:1.3}
.btn-sun{background:var(--sun-lt);color:var(--lake-deep)}
.btn-lake{background:var(--lake);color:#fff}
.btn-lake:hover{background:var(--lake-deep)}
.btn-ghost{border:1px solid currentColor;background:transparent;color:var(--lake)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:8px;min-width:0}
.card b{font-size:17px}
.card span{color:var(--muted);font-size:14.5px;line-height:1.65}
.ico{width:44px;height:44px;border-radius:12px;background:var(--tint);color:var(--lake);display:grid;place-items:center;flex:none}
.ico svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tags{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.tags li{background:var(--tint);color:var(--lake);font-weight:700;font-size:14px;padding:6px 14px;border-radius:999px}
.badge{display:inline-block;align-self:flex-start;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;background:var(--tint);color:var(--lake);line-height:1.6}
.badge.ev{background:var(--sun-soft);color:var(--sun)}
.badge.an{background:#E6E3F2;color:#4B3F8A}
.ph{background:repeating-linear-gradient(135deg,var(--tint) 0 12px,transparent 12px 24px),var(--surface);border:1px dashed var(--line);border-radius:14px;display:grid;place-items:center;color:var(--muted);font-size:14px;text-align:center;padding:16px}

/* 首頁主視覺 */
.hero{background:var(--lake-deep);color:var(--on-lake)}
.hero-img{width:100%;height:auto;aspect-ratio:21/9;object-fit:cover;object-position:center 85%;background:#F2D8B8}
.hero .wrap{padding-block:28px 40px;display:flex;flex-direction:column;gap:12px}
.hero h1{font-size:clamp(30px,5vw,54px);color:#fff}
.hero .sub{color:var(--on-lake-muted);font-size:18px;max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.hero-cta .btn-ghost{color:#fff;border-color:rgba(255,255,255,.45)}
.facts{list-style:none;margin:14px 0 0;padding:16px 0 0;border-top:1px solid rgba(255,255,255,.16);display:flex;gap:40px;flex-wrap:wrap}
.facts li{display:flex;flex-direction:column;font-size:14px;color:var(--on-lake-muted)}
.facts b{font-family:var(--serif);font-size:30px;color:#fff;line-height:1.15}
.quote{background:var(--lake-deep);color:var(--on-lake);border-radius:18px;padding:44px 36px 32px;position:relative;overflow:hidden}
.quote::before{content:"\201C";position:absolute;top:-20px;left:16px;font-family:Georgia,serif;font-size:120px;color:var(--sun-lt);line-height:1.2}
.quote p{font-family:var(--serif);font-size:clamp(22px,3.4vw,30px);font-weight:600;line-height:1.5;position:relative}
.quote em{font-style:normal;color:var(--sun-lt)}
.logos{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.logo-tile{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px;display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;font-size:14px;font-weight:700;text-decoration:none;transition:transform .2s,box-shadow .2s}
a.logo-tile:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(15,46,53,.1)}
.logo-tile .lg{width:100%;aspect-ratio:1;border-radius:10px;overflow:hidden;background:#fff}
.logo-tile .lg img{width:100%;height:100%;object-fit:contain}
.logo-tile.add{border:2px dashed #B9CBC7;background:transparent;justify-content:center;color:var(--lake)}
.logo-tile.add .plus{width:52px;height:52px;border-radius:50%;background:var(--tint);display:grid;place-items:center;font-size:30px;font-weight:300}
.band{background:var(--sun-soft);border-radius:18px;padding:28px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.band h3{font-size:24px}

/* 消息 */
.news-list{display:flex;flex-direction:column;gap:12px}
.news{display:grid;grid-template-columns:96px 1fr auto;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;text-decoration:none}
a.news:hover{border-color:var(--lake)}
.news .date{font-family:var(--serif);text-align:center;line-height:1.2;color:var(--lake)}
.news .date b{display:block;font-size:30px}
.news .date small{font-size:12px;color:var(--muted)}
.news h3{font-size:18px;margin:4px 0 2px}
.news .go{color:var(--sun);font-weight:700;font-size:14px;white-space:nowrap}
.news.pin{border:2px solid var(--sun-lt)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font:inherit;font-size:14px;padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.chip[aria-pressed="true"]{background:var(--lake);border-color:var(--lake);color:#fff}
.article{background:var(--surface);border-radius:18px;padding:30px;display:flex;flex-direction:column;gap:14px;box-shadow:0 10px 26px rgba(15,46,53,.06)}
.article h2{font-size:28px}

/* 活動 */
.feature{display:grid;grid-template-columns:1.1fr 1fr;background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.feature .visual{min-height:280px;background:linear-gradient(160deg,#2C7A85,#0F2E35);color:#fff;display:flex;flex-direction:column;justify-content:flex-end;padding:26px;gap:4px}
.feature .visual b{font-family:var(--serif);font-size:84px;line-height:1}
.feature .visual span{color:var(--on-lake-muted)}
.feature .body{padding:26px;display:flex;flex-direction:column;gap:10px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:15px;margin:0}
.kv dt{color:var(--muted)}
.kv dd{margin:0;font-weight:500}
.series{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.series div{border-radius:12px;padding:14px 8px;text-align:center;background:var(--surface);border:1px solid var(--line)}
.series b{display:block;font-family:var(--serif);font-size:30px;color:var(--lake)}
.series .now{background:var(--lake);border-color:var(--lake);color:#fff}
.series .now b{color:#fff}
.series small{font-size:12px}

/* 加入 */
.qual{display:flex;gap:16px;background:var(--lake-deep);color:var(--on-lake);border-radius:16px;padding:22px}
.qual .badge-ic{flex:none;width:46px;height:46px;border-radius:50%;background:var(--sun-lt);color:var(--lake-deep);display:grid;place-items:center}
.qual .badge-ic svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.qual b{font-size:18px}
.qual ul{margin:6px 0 8px;padding-left:18px;color:var(--on-lake-muted);font-size:15px}
.qual a{color:var(--on-lake-muted);font-size:14px}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:10px;counter-reset:s}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 16px;display:flex;flex-direction:column;gap:4px}
.steps li::before{content:counter(s);width:30px;height:30px;border-radius:50%;background:var(--sun);color:#fff;display:grid;place-items:center;font-weight:700;margin-bottom:4px}
.steps b{font-size:16px}
.steps span{font-size:14px;color:var(--muted)}
.rules{list-style:none;margin:0;padding:0;counter-reset:r}
.rules li{counter-increment:r;display:grid;grid-template-columns:56px 1fr;padding:16px 0;border-top:1px solid var(--line)}
.rules li::before{content:counter(r,decimal-leading-zero);font-family:var(--serif);font-size:28px;color:var(--sun);line-height:1.2}
.rules b{font-size:18px}
details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 18px}
details+details{margin-top:8px}
summary{cursor:pointer;font-weight:700}
details p{margin-top:8px;color:var(--muted);font-size:15px}

/* 表單 */
.form{background:var(--surface);border-radius:18px;padding:28px;box-shadow:0 10px 26px rgba(15,46,53,.07);display:flex;flex-direction:column;gap:16px}
.f{display:flex;flex-direction:column;gap:6px;min-width:0}
.f label,.f .lb{font-weight:500}
.f i{font-style:normal;color:var(--sun)}
.f input,.f select,.f textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 12px;width:100%}
.f input:focus,.f select:focus,.f textarea:focus{border-color:var(--lake);outline:2px solid rgba(29,92,102,.25)}
.f textarea{min-height:120px;resize:vertical}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pick{display:flex;flex-wrap:wrap;gap:8px}
.pick label{position:relative;cursor:pointer}
.pick input{position:absolute;opacity:0;width:1px;height:1px}
.pick span{display:inline-block;padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:var(--bg);font-size:15px}
.pick input:checked+span{background:var(--lake);border-color:var(--lake);color:#fff}
.pick input:focus-visible+span{outline:3px solid var(--sun-lt);outline-offset:2px}
.ck{display:flex;gap:10px;align-items:flex-start;background:var(--bg);border-radius:12px;padding:12px 14px;font-size:15px;line-height:1.6;cursor:pointer}
.ck input{width:20px;height:20px;margin:3px 0 0;flex:none;accent-color:var(--lake)}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
.err{color:#B4371F;font-weight:500;font-size:15px}
.done{display:flex;gap:14px;align-items:flex-start;background:#E8F3EE;border:2px solid var(--ok);border-radius:14px;padding:20px}
.done b{display:block;font-size:18px;margin-bottom:4px}
.form .btn[disabled]{opacity:.6;cursor:wait}

/* 聯繫 */
.contact{display:grid;grid-template-columns:1fr 1.3fr;gap:20px;align-items:start}
.info{display:flex;flex-direction:column;gap:10px}
.info .row{display:flex;gap:14px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px}
.info small{display:block;color:var(--muted);font-size:13px}

/* 頁尾 */
.ftr{background:var(--lake-deep);color:var(--on-lake-muted);font-size:14px}
.ftr .wrap{padding-block:36px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:20px}
.ftr b{color:#fff;display:block;margin-bottom:6px}
.ftr a{display:block;text-decoration:none;padding:2px 0}
.ftr a:hover{color:#fff}
.ftr .copy{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);padding-top:14px;font-size:12.5px}
.sticky{display:none}

a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--sun-lt);outline-offset:2px}

@media (max-width:860px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--surface);border-bottom:1px solid var(--line);padding:10px 16px 16px;box-shadow:0 12px 24px rgba(15,46,53,.08)}
  .nav.open{display:flex}
  .nav a{padding:12px;font-size:16px}
  .nav .cta{margin:6px 0 0;text-align:center}
  .burger{display:block}
  .grid3{grid-template-columns:repeat(2,1fr)}
  .logos{grid-template-columns:repeat(2,1fr)}
  .logo-tile.add{grid-column:1/-1;flex-direction:row;gap:12px}
  .logo-tile.add .plus{width:36px;height:36px;font-size:22px}
  .steps{grid-template-columns:1fr 1fr}
  .feature,.contact{grid-template-columns:1fr}
  .ftr .wrap{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  body{line-height:1.8}
  .logo{font-size:15px}
  .logo small{font-size:9.5px}
  .sec{padding-block:36px;gap:14px}
  h2{font-size:24px}
  .page-head .wrap{padding-block:30px 36px}
  .hero-img{aspect-ratio:16/9}
  .hero .wrap{padding-block:20px 30px}
  .hero .sub{font-size:16px}
  .hero-cta .btn{flex:1 1 0;padding:13px 10px}
  .facts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:10px}
  .facts b{font-size:22px}
  .facts li{font-size:12.5px}
  .grid3{grid-template-columns:1fr;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden}
  .grid3 .card{border:none;border-radius:0;display:grid;grid-template-columns:40px 1fr;column-gap:14px;row-gap:2px;padding:14px 16px}
  .grid3 .card+.card{border-top:1px solid var(--line)}
  .grid3 .card .ico{width:40px;height:40px;grid-row:1/3}
  .grid3 .card b,.grid3 .card span{grid-column:2}
  .grid3 .card .badge{grid-column:2}
  .grid3 .card b{font-size:16px}
  .grid3 .card span{font-size:14px}
  .grid3.plain{display:grid;background:none;border:none;gap:10px}
  .grid3.plain .card{display:flex;border:1px solid var(--line);border-radius:14px}
  .quote{padding:40px 20px 22px}
  .quote::before{font-size:96px;top:-14px;left:12px}
  .news{grid-template-columns:62px 1fr;gap:12px;padding:14px}
  .news .date b{font-size:24px}
  .news .go{display:none}
  .news h3{font-size:16px}
  .steps{grid-template-columns:repeat(4,1fr);gap:6px}
  .steps li{padding:10px 4px;align-items:center;text-align:center}
  .steps li::before{width:26px;height:26px;font-size:13px}
  .steps b{font-size:13px}
  .steps span{display:none}
  .rules li{grid-template-columns:44px 1fr;padding:14px 0}
  .rules li::before{font-size:24px}
  .rules b{font-size:17px}
  .qual{flex-direction:column;gap:10px;padding:18px}
  .form{padding:20px 16px;border-radius:16px}
  .f2{grid-template-columns:1fr}
  .form .btn{width:100%;padding:15px}
  .ck{font-size:14px}
  .feature .visual{min-height:180px}
  .feature .visual b{font-size:64px}
  .feature .body{padding:20px}
  .series b{font-size:22px}
  .series small{display:none}
  .article{padding:20px 16px}
  .article h2{font-size:23px}
  .band{padding:20px}
  .band .btn{width:100%}
  .ftr .wrap{grid-template-columns:1fr;padding-bottom:96px}
  .sticky{display:flex;position:fixed;left:16px;right:16px;bottom:calc(14px + env(safe-area-inset-bottom,0px));z-index:40;justify-content:center;background:var(--lake);color:#fff;text-decoration:none;font-weight:700;font-size:17px;padding:15px;border-radius:999px;box-shadow:0 10px 26px rgba(15,46,53,.35);transition:opacity .25s,transform .25s}
  .sticky.off{opacity:0;transform:translateY(24px);pointer-events:none}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin:8px 0 4px}
.gallery a{display:block;border-radius:10px;overflow:hidden;aspect-ratio:4/3;background:var(--line)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.gallery a:hover img{transform:scale(1.04)}
.feature .visual.li{background:linear-gradient(90deg,#FAFAFA 0%,#FAFAFA 18%,rgba(250,250,250,0) 45%),url(/assets/img/li-art.jpg) right bottom/auto 100% no-repeat,#FAFAFA;color:#1F6B66}
.feature .visual.li span{color:#2E7D77;font-weight:600;letter-spacing:.06em}