:root{--sqv-or:#ff5000;--sqv-red:#e5152c;--sqv-ink:#1c1c1e;--sqv-tx:#2f2f2f;--sqv-tx2:#555;--sqv-bg:#f5f5f5;--sqv-line:#e2e2e2;--sqv-dark:#333;--sqv-ortx:#b23800;--sqv-cream:#fff6ef}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:17px/1.66 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;color:var(--sqv-tx);background:var(--sqv-bg)}
img{max-width:100%;height:auto}
a{color:var(--sqv-ortx);text-underline-offset:2px}
a:hover{color:var(--sqv-red)}
:focus-visible{outline:3px solid var(--sqv-or);outline-offset:2px}
.sqv-vh,.sqv-skip{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.sqv-skip:focus{position:fixed!important;left:8px;top:8px;width:auto;height:auto;margin:0;padding:10px 14px;clip:auto;overflow:visible;background:#fff;color:#111;z-index:9}
.sqv-top{background:#fff;border-bottom:1px solid var(--sqv-line)}
.sqv-top-in{max-width:1180px;margin:0 auto;padding:6px 24px;display:flex;align-items:center;gap:14px}
.sqv-brand{display:flex;align-items:center;gap:10px;min-width:0;min-height:44px;text-decoration:none;color:var(--sqv-ink)}
.sqv-brand img{height:26px;width:auto;flex:none}
.sqv-brand span{font-weight:700;font-size:15px;line-height:1.2;min-width:0}
.sqv-nav{display:flex;margin-left:auto;gap:2px}
.sqv-nav a{flex:none;display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;padding:0 10px;color:var(--sqv-ink);text-decoration:none;font-size:15px;border-radius:4px}
.sqv-nav a:hover{background:var(--sqv-cream);color:var(--sqv-ortx)}
.sqv-nav a[aria-current="page"]{color:var(--sqv-ortx);box-shadow:inset 0 -3px 0 var(--sqv-or)}
.sqv-edge{background:var(--sqv-dark)}
.sqv-edge-in{max-width:1180px;margin:0 auto;padding:0 18px;display:flex;overflow-x:auto;scrollbar-width:thin}
.sqv-edge a{flex:none;display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:0 10px;color:#fff;text-decoration:none;font-size:14px;white-space:nowrap}
.sqv-edge a:hover{background:#444;color:#fff}
.sqv-code{display:inline-flex;align-items:center;justify-content:center;width:26px;height:22px;border-radius:3px;background:var(--sqv-or);color:#111;font-size:12px;font-weight:700;letter-spacing:.02em;flex:none}
main{display:block}
.sqv-col{max-width:820px;margin:0 auto;padding:0 24px}
.sqv-wide{max-width:1180px;margin:0 auto;padding:0 24px}
.sqv-hero{background:#fff;border-bottom:4px solid var(--sqv-or);padding:40px 0 22px}
.sqv-hero h1,.sqv-head h1{font-size:34px;line-height:1.2;color:var(--sqv-ink);margin:0 0 12px;letter-spacing:-.01em}
.sqv-lede{font-size:19px;color:var(--sqv-tx2);margin:0 0 20px}
.sqv-find{display:flex;width:100%;border:2px solid var(--sqv-or);border-radius:4px;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.sqv-find input[type=search]{flex:1;min-width:0;font:inherit;font-size:17px;padding:14px 16px;border:0;background:transparent;color:var(--sqv-ink)}
.sqv-find input[type=search]:focus{outline:none}
.sqv-find:focus-within{box-shadow:0 0 0 3px rgba(255,80,0,.3)}
.sqv-find button{flex:none;font:inherit;font-weight:700;font-size:17px;background:var(--sqv-or);color:#111;border:0;padding:0 26px;min-height:54px;cursor:pointer}
.sqv-find button:hover{background:#333;color:#fff}
.sqv-sub{display:flex;flex-wrap:wrap;gap:4px 18px;margin:12px 0 0;padding:0;list-style:none;font-size:15px}
.sqv-sub a{display:inline-flex;align-items:center;min-height:44px;color:var(--sqv-ink)}
.sqv-meta{font-size:14px;color:var(--sqv-tx2);margin:8px 0 0}
.sqv-head{background:#fff;border-bottom:4px solid var(--sqv-or);padding:20px 0 18px}
.sqv-crumbs ol{display:flex;flex-wrap:wrap;gap:0 8px;list-style:none;margin:0 0 6px;padding:0;font-size:14px}
.sqv-crumbs li+li::before{content:"/";color:#999;margin-right:8px}
.sqv-crumbs a{display:inline-flex;align-items:center;min-height:44px;min-width:44px;color:var(--sqv-tx2)}
.sqv-crumbs span{display:inline-flex;align-items:center;min-height:44px;color:var(--sqv-tx2)}
.sqv-sec{padding:34px 0;border-bottom:1px solid var(--sqv-line);background:#fff}
.sqv-sec:nth-of-type(even){background:#fafafa}
.sqv-sec h2{font-size:25px;line-height:1.25;color:var(--sqv-ink);margin:0 0 14px;padding-left:14px;border-left:6px solid var(--sqv-or)}
.sqv-sec h3{font-size:19px;margin:22px 0 8px;color:var(--sqv-ink)}
.sqv-sec p{margin:0 0 14px}
.sqv-sec ul,.sqv-sec ol{margin:0 0 14px;padding-left:24px}
.sqv-sec li{margin:0 0 6px}
.sqv-fig{margin:18px 0 6px;padding:0;width:100%}
.sqv-fig img{display:block;width:100%;height:auto;border:1px solid var(--sqv-line);border-radius:4px;background:#fff}
.sqv-fig figcaption{font-size:14px;color:var(--sqv-tx2);margin-top:8px;line-height:1.5}
.sqv-video .sqv-play{display:block;position:relative;width:100%;padding:0;border:0;background:none;cursor:pointer}
.sqv-video .sqv-play img{border-radius:4px}
.sqv-play-mark{position:absolute;left:50%;top:50%;width:84px;height:84px;margin:-42px 0 0 -42px;border-radius:50%;background:rgba(255,80,0,.94);box-shadow:0 2px 8px rgba(0,0,0,.3)}
.sqv-play-mark::after{content:"";position:absolute;left:33px;top:24px;border-style:solid;border-width:18px 0 18px 28px;border-color:transparent transparent transparent #111}
.sqv-video video{display:block;width:100%;aspect-ratio:16/9;background:#000;border-radius:4px}
.sqv-vslot{aspect-ratio:16/9;width:100%;background:#eee;border-radius:4px}
.sqv-gslot{aspect-ratio:16/10;width:100%;background:#eee;margin:18px 0}
.sqv-wallsec{background:var(--sqv-bg);padding:28px 0 30px;border-bottom:1px solid var(--sqv-line)}
.sqv-wallsec h2{font-size:23px;margin:0 0 4px;color:var(--sqv-ink)}
.sqv-wallsec .sqv-wall-note{margin:0 0 16px;color:var(--sqv-tx2);font-size:15px}
.sqv-wall{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.sqv-shelf{display:flex;flex-direction:column;background:#fff;border:1px solid var(--sqv-line);border-radius:4px;text-decoration:none;color:var(--sqv-tx);box-shadow:0 2px 8px rgba(0,0,0,.06);overflow:hidden}
.sqv-shelf:hover{border-color:var(--sqv-or);color:var(--sqv-tx)}
.sqv-shelf img{display:block;width:100%;aspect-ratio:1/1;object-fit:contain;background:#fff}
.sqv-shelf-tx{padding:10px 12px 12px;display:flex;flex-direction:column;gap:4px}
.sqv-shelf-tx b{color:var(--sqv-ink);font-size:16px}
.sqv-shelf-tx span{font-size:14px;color:var(--sqv-tx2);line-height:1.45}
.sqv-dest{align-self:flex-start;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#111;background:#ffd9c2;border-radius:3px;padding:2px 6px}
.sqv-wall-more{margin:14px 0 0;font-size:15px}
.sqv-wall-more a{display:inline-flex;align-items:center;min-height:44px}
.sqv-index{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border:1px solid var(--sqv-line);border-radius:4px;overflow:hidden;margin:14px 0}
.sqv-index a{display:flex;align-items:center;gap:8px;min-height:48px;padding:6px 10px;border-right:1px solid var(--sqv-line);border-bottom:1px solid var(--sqv-line);background:#fff;color:var(--sqv-ink);text-decoration:none;font-size:15px}
.sqv-index a:hover{background:var(--sqv-cream)}
.sqv-btnrow{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 4px}
.sqv-btn{display:inline-flex;align-items:center;min-height:46px;padding:0 20px;border-radius:4px;background:var(--sqv-or);color:#111;font-weight:700;text-decoration:none;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.sqv-btn:hover{background:#333;color:#fff}
.sqv-btn-line{display:inline-flex;align-items:center;min-height:46px;padding:0 18px;border-radius:4px;border:2px solid #333;color:#111;font-weight:700;text-decoration:none;background:#fff}
.sqv-btn-line:hover{background:#333;color:#fff}
.sqv-note{font-size:14px;color:var(--sqv-tx2)}
.sqv-go{display:inline-flex;align-items:center;min-height:44px;font-weight:700}
.sqv-sec h3 a{display:inline-flex;align-items:center;min-height:44px}
.sqv-box{background:var(--sqv-cream);border-left:4px solid var(--sqv-or);padding:12px 16px;margin:0 0 14px;border-radius:0 4px 4px 0}
.sqv-box p:last-child{margin-bottom:0}
.sqv-tbl{width:100%;border-collapse:collapse;margin:0 0 16px;font-size:15px;background:#fff}
.sqv-tbl th,.sqv-tbl td{border:1px solid var(--sqv-line);padding:8px 10px;text-align:left;vertical-align:top}
.sqv-tbl th{background:#f0f0f0;color:var(--sqv-ink)}
.sqv-tblwrap{overflow-x:auto;margin:0 0 16px}
.sqv-tblwrap .sqv-tbl{margin:0;min-width:520px}
.sqv-nb{white-space:nowrap}
.sqv-leafhead{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 0;padding:0;list-style:none}
.sqv-leafhead a{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 10px;border:1px solid var(--sqv-line);border-radius:4px;background:#fff;color:var(--sqv-ink);text-decoration:none;font-size:15px}
.sqv-leafhead a:hover{border-color:var(--sqv-or)}
.sqv-shelfhead{display:flex;align-items:center;gap:10px;margin:0 0 6px}
.sqv-shelfhead .sqv-code{width:34px;height:28px;font-size:14px}
.sqv-sec h2.sqv-h2code{padding-left:0;border-left:0;display:flex;align-items:center;gap:12px}
.sqv-picks{list-style:none;margin:16px 0 8px;padding:0;display:flex;flex-direction:column;gap:14px}
.sqv-pick{display:grid;grid-template-columns:200px minmax(0,1fr);gap:18px;background:#fff;border:1px solid var(--sqv-line);border-radius:4px;padding:14px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.sqv-pick-img{display:block;border:1px solid var(--sqv-line);border-radius:4px;overflow:hidden;align-self:start}
.sqv-pick-img img{display:block;width:100%;aspect-ratio:1/1;object-fit:contain;background:#fff}
.sqv-pick h3{font-size:18px;margin:0 0 4px}
.sqv-tag{display:inline-flex;align-items:center;font-size:13px;font-weight:700;border-radius:3px;padding:1px 7px;margin:0 6px 6px 0;background:#f0f0f0;color:#222}
.sqv-tag-low{background:#e3f0e6;color:#14532d}
.sqv-tag-mid{background:#fff1cf;color:#5c3d00}
.sqv-tag-high{background:#ffe0d2;color:#7a2600}
.sqv-looks{counter-reset:lk;list-style:none;margin:8px 0 8px;padding:0}
.sqv-looks li{counter-increment:lk;position:relative;padding-left:32px;margin:0 0 6px}
.sqv-looks li::before{content:counter(lk);position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:3px;background:#333;color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.sqv-pick p{margin:0 0 8px;font-size:16px}
.sqv-pick-go{display:inline-flex;align-items:center;min-height:44px;font-weight:700}
.sqv-shelfgo{display:inline-flex;align-items:center;min-height:44px}
.sqv-steps{counter-reset:st;list-style:none;margin:0;padding:0}
.sqv-tool{background:#fff;border:1px solid var(--sqv-line);border-radius:4px;padding:18px;margin:0 0 16px}
.sqv-tool fieldset{border:0;margin:0 0 14px;padding:0}
.sqv-tool legend{font-weight:700;color:var(--sqv-ink);margin:0 0 6px}
.sqv-checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 16px}
.sqv-checks label{display:flex;align-items:center;gap:8px;min-height:44px;font-size:15px}
.sqv-checks input{width:20px;height:20px;flex:none;accent-color:#ff5000}
.sqv-tool .sqv-row{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;margin:0 0 12px}
.sqv-tool .sqv-row label{display:flex;flex-direction:column;font-size:15px;gap:4px}
.sqv-tool input[type=number],.sqv-tool select{font:inherit;min-height:44px;padding:6px 10px;border:1px solid #bbb;border-radius:4px;background:#fff;color:#111}
.sqv-tool button{font:inherit;font-weight:700;min-height:46px;padding:0 20px;border:0;border-radius:4px;background:var(--sqv-or);color:#111;cursor:pointer}
.sqv-tool button:hover{background:#333;color:#fff}
.sqv-out{white-space:pre-wrap;background:#1f1f1f;color:#f3f3f3;border-radius:4px;padding:14px;font:15px/1.55 Consolas,Menlo,monospace;margin:12px 0 8px;min-height:60px}
.sqv-sum{font-weight:700;color:var(--sqv-ink)}
.sqv-faq dt{font-weight:700;color:var(--sqv-ink);margin:16px 0 4px}
.sqv-faq dd{margin:0 0 8px}
.sqv-gloss dt{font-weight:700;color:var(--sqv-ink);margin:12px 0 2px}
.sqv-gloss dd{margin:0 0 6px}
.sqv-foot{background:var(--sqv-dark);color:#e8e8e8;padding:34px 0 26px;font-size:15px}
.sqv-foot-in{max-width:1180px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:28px}
.sqv-foot a{color:#fff;display:inline-flex;align-items:center;min-height:44px;min-width:44px}
.sqv-foot ul{list-style:none;margin:0;padding:0}
.sqv-foot .sqv-foot-t{font-weight:700;color:#fff;margin:0 0 6px;font-size:16px}
.sqv-foot p{margin:0 0 10px;color:#ddd}
.sqv-foot-cats{columns:2;column-gap:16px}
.sqv-foot-base{max-width:1180px;margin:20px auto 0;padding:14px 24px 0;border-top:1px solid #555;color:#ccc;font-size:14px}
@media (max-width:1060px){.sqv-top-in{flex-wrap:wrap;padding:6px 18px}.sqv-nav{margin-left:0;width:100%;overflow-x:auto;scrollbar-width:thin}}
@media (max-width:900px){.sqv-wall{grid-template-columns:repeat(2,minmax(0,1fr))}.sqv-index{grid-template-columns:repeat(2,minmax(0,1fr))}.sqv-foot-in{grid-template-columns:minmax(0,1fr)}}
@media (max-width:640px){body{font-size:16px}.sqv-col,.sqv-wide{padding:0 16px}.sqv-hero{padding:26px 0 16px}.sqv-hero h1,.sqv-head h1{font-size:27px}.sqv-lede{font-size:17px}.sqv-sec h2{font-size:22px}.sqv-pick{grid-template-columns:110px minmax(0,1fr);gap:12px;padding:10px}.sqv-checks{grid-template-columns:minmax(0,1fr)}.sqv-find button{padding:0 16px}.sqv-brand span{font-size:14px}.sqv-wall{gap:10px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}