/* 毫秒助手官网 — mshelp.msecond.net */
:root{
  --navy:#08152B;
  --navy-2:#0E2340;
  --navy-3:#16314F;
  --teal:#22C7B8;
  --teal-bright:#3EDDCD;
  --teal-dim:#159887;
  --gold:#C6A15B;
  --ink:#0D1B2E;
  --body:#48566B;
  --muted:#7B8798;
  --line:#E7ECF3;
  --line-2:#D8E1ED;
  --soft:#F7F9FC;
  --white:#fff;
  --radius:16px;
  --radius-sm:10px;
  --wrap:1200px;
  --shadow-sm:0 1px 2px rgba(13,27,46,.04),0 6px 18px -8px rgba(13,27,46,.10);
  --shadow-md:0 2px 4px rgba(13,27,46,.05),0 18px 40px -18px rgba(13,27,46,.18);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.75;
  color:var(--body);background:var(--white);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.02em;line-height:1.22}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
::selection{background:rgba(34,199,184,.22)}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--teal-dim);
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;opacity:.6}
.section{padding:clamp(64px,8vw,112px) 0}
.section--soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px}
.section-head h2{font-size:clamp(1.65rem,3.1vw,2.45rem);margin:14px 0 0}
.section-head p{margin-top:16px;font-size:1.0625rem;color:var(--body)}
.section-head--center{margin:0 auto;text-align:center}
.section-head--center .eyebrow::before{display:none}

/* ---------- 顶部导航 ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s;
}
.nav.is-stuck{border-bottom-color:var(--line);box-shadow:0 6px 24px -20px rgba(13,27,46,.5)}
.nav__in{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{width:36px;height:36px;border-radius:10px;display:block}
.brand__txt{display:block;font-size:1.0625rem;font-weight:700;color:var(--ink);letter-spacing:.01em;line-height:1.25}
.brand__sub{display:block;font-size:9.5px;color:var(--muted);letter-spacing:.16em;text-transform:uppercase;line-height:1.4}
.nav__links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav__links a{
  padding:8px 14px;border-radius:999px;font-size:.9375rem;color:var(--body);
  transition:background .18s,color .18s;white-space:nowrap;
}
.nav__links a:hover{background:var(--soft);color:var(--ink)}
.nav__cta{
  display:inline-flex;align-items:center;gap:7px;margin-left:8px;white-space:nowrap;flex-shrink:0;white-space:nowrap;flex-shrink:0;
  padding:10px 18px;border-radius:999px;background:var(--navy);color:#fff;
  font-size:.9375rem;font-weight:600;transition:background .2s,transform .2s;
}
.nav__cta:hover{background:var(--navy-3);transform:translateY(-1px)}
.nav__burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;margin-left:auto;align-items:center;justify-content:center}
.nav__burger span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative}
.nav__burger span::before,.nav__burger span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink)}
.nav__burger span::before{top:-6px}.nav__burger span::after{top:6px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;background:var(--navy);color:#fff;
  padding:clamp(64px,9vw,120px) 0 clamp(56px,7vw,96px);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 520px at 78% 12%,rgba(34,199,184,.20),transparent 62%),
    radial-gradient(700px 460px at 12% 88%,rgba(22,49,79,.9),transparent 70%),
    linear-gradient(180deg,#08152B 0%,#0A1A32 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 60% 30%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 60% 30%,#000,transparent 78%);
}
.hero__in{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero__badge{
  display:inline-flex;align-items:center;gap:9px;padding:7px 14px 7px 9px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  font-size:.8125rem;color:rgba(255,255,255,.82);letter-spacing:.02em;
}
.hero__badge b{color:var(--teal-bright);font-weight:600}
.hero h1{
  color:#fff;font-size:clamp(2.15rem,4.6vw,3.75rem);line-height:1.1;
  letter-spacing:-.035em;margin:22px 0 0;font-weight:700;
}
.hero h1 em{font-style:normal;color:var(--teal-bright)}
.hero__lead{
  margin-top:22px;font-size:clamp(1rem,1.35vw,1.125rem);line-height:1.85;
  color:rgba(255,255,255,.72);max-width:34em;
}
.hero__acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:999px;font-size:1rem;font-weight:600;
  border:1px solid transparent;transition:transform .2s,background .2s,border-color .2s,color .2s;
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--teal);color:#052A28}
.btn--primary:hover{background:var(--teal-bright)}
.btn--ghost{border-color:rgba(255,255,255,.22);color:#fff;background:rgba(255,255,255,.04)}
.btn--ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.34)}
.btn--dark{background:var(--navy);color:#fff}
.btn--dark:hover{background:var(--navy-3)}
.btn--line{border-color:var(--line-2);color:var(--ink);background:#fff}
.btn--line:hover{border-color:var(--ink);background:var(--soft)}
.btn__arrow{width:16px;height:16px;flex-shrink:0}

.hero__meta{display:flex;flex-wrap:wrap;gap:26px 34px;margin-top:44px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12)}
.hero__meta div{display:flex;flex-direction:column;gap:2px}
.hero__meta dt,.hero__meta .k{font-size:.8125rem;color:rgba(255,255,255,.5);letter-spacing:.04em}
.hero__meta dd,.hero__meta .v{margin:0;font-size:1.5rem;font-weight:700;color:#fff;letter-spacing:-.02em}
.hero__meta .v span{font-size:.875rem;font-weight:500;color:rgba(255,255,255,.55);margin-left:3px;letter-spacing:0}

/* Hero 右侧：工具卡堆叠 */
.hero__visual{position:relative;height:100%;min-height:380px;display:flex;align-items:center;justify-content:center}
.stack{position:relative;width:100%;max-width:330px;height:450px}
.stack__phone{
  position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:74%;height:100%;border-radius:28px;
  background:linear-gradient(170deg,#fff,#F1F5FA);
  border:1px solid rgba(255,255,255,.5);
  box-shadow:0 40px 80px -30px rgba(0,0,0,.7),0 0 0 8px rgba(255,255,255,.05);
  overflow:hidden;padding:12px 11px 10px;display:flex;flex-direction:column;
}
.stack--shot{height:auto;max-width:300px}
.stack__phone--shot{position:relative;left:auto;top:auto;transform:none;width:100%;height:auto;padding:0;display:block;aspect-ratio:750/1624;border-radius:34px;overflow:hidden;background:#0A1524;border:1px solid rgba(255,255,255,.14);box-shadow:0 0 0 9px rgba(255,255,255,.05),0 50px 90px -36px rgba(0,0,0,.85)}
.stack__phone--shot img{width:100%;height:100%;object-fit:fill;display:block}
.stack__bar{display:flex;align-items:center;justify-content:space-between;font-size:8px;color:var(--muted);font-weight:600;padding:0 3px 7px}
.stack__bar i{display:block;width:26px;height:3px;border-radius:9px;background:var(--line-2);font-style:normal}
.stack__search{
  height:22px;border-radius:11px;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;padding:0 8px;font-size:7.5px;color:#A8B2C1;gap:4px;
}
.stack__search::before{content:"";width:7px;height:7px;border:1.2px solid #A8B2C1;border-radius:50%;flex-shrink:0}
.stack__label{font-size:8.5px;font-weight:700;color:var(--ink);margin:9px 1px 6px;letter-spacing:-.01em;display:flex;justify-content:space-between;align-items:center}
.stack__label em{font-style:normal;font-weight:400;font-size:7px;color:#A8B2C1}
.stack__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.stack__cell{
  aspect-ratio:1;border-radius:8px;background:#fff;border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:6px;color:var(--muted);box-shadow:0 1px 2px rgba(13,27,46,.04);padding:1px;
  line-height:1.1;text-align:center;
}
.stack__cell b{
  width:13px;height:13px;border-radius:4px;display:grid;place-items:center;
  font-size:7px;color:#fff;font-weight:700;background:var(--navy-3);flex-shrink:0;
}
.stack__cell:nth-child(3n+1) b{background:var(--teal-dim)}
.stack__cell:nth-child(3n+2) b{background:#2C5C8F}
.stack__cell:nth-child(3n) b{background:var(--gold)}
.stack__rows{display:grid;gap:5px;flex:1;align-content:start}
.stack__row{
  display:flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);
  border-radius:7px;padding:6px 7px;box-shadow:0 1px 2px rgba(13,27,46,.04);
}
.stack__row u{text-decoration:none;width:14px;height:14px;border-radius:4px;display:grid;place-items:center;font-size:6.5px;color:#fff;background:#2C5C8F;flex-shrink:0}
.stack__row span{display:block;font-size:6.5px;color:var(--ink);line-height:1.3;font-weight:600}
.stack__row small{display:block;font-size:5.5px;color:#A8B2C1;line-height:1.3;font-weight:400}
.stack__tabs{
  display:flex;justify-content:space-around;align-items:center;border-top:1px solid var(--line);
  padding-top:6px;margin-top:6px;font-size:6px;color:#A8B2C1;
}
.stack__tabs b{color:var(--teal-dim);font-weight:600}
.stack__float{
  position:absolute;background:#fff;border-radius:13px;padding:10px 12px;
  box-shadow:0 24px 48px -18px rgba(0,0,0,.55);display:flex;align-items:center;gap:9px;
  border:1px solid rgba(255,255,255,.6);animation:float 6s ease-in-out infinite;
}
.stack__float b{font-size:12px;color:var(--ink);display:block;line-height:1.3}
.stack__float span{font-size:10px;color:var(--muted);display:block;line-height:1.4}
.stack__float i{
  width:28px;height:28px;border-radius:9px;flex-shrink:0;display:grid;place-items:center;
  background:rgba(34,199,184,.14);color:var(--teal-dim);font-style:normal;font-size:12px;font-weight:700;
}
.stack__float--a{left:-10%;top:13%;animation-delay:-1s}
.stack__float--b{right:-11%;bottom:17%;animation-delay:-3.4s}
.stack__float--b i{background:rgba(198,161,91,.16);color:#96702E}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---------- 数字条 ---------- */
.figures{background:var(--navy-2);color:#fff;padding:0}
.figures__in{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.08)}
.figures__cell{padding:34px 26px;border-right:1px solid rgba(255,255,255,.08)}
.figures__cell:last-child{border-right:0}
.figures__cell b{display:block;font-size:clamp(1.75rem,3vw,2.4rem);font-weight:700;letter-spacing:-.03em;line-height:1.1}
.figures__cell b i{font-style:normal;font-size:.5em;font-weight:600;color:var(--teal-bright);margin-left:4px;letter-spacing:0}
.figures__cell span{display:block;margin-top:7px;font-size:.875rem;color:rgba(255,255,255,.55)}

/* ---------- 主工具网格 ---------- */
.tools-main{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px}
.tools-main .tool-card--hero{grid-column:span 1}
.tool-card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:transform .25s,border-color .25s,box-shadow .25s;
}
.tool-card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--shadow-md)}
.tool-card__ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--soft);border:1px solid var(--line);color:var(--navy);
  font-size:1.0625rem;font-weight:700;flex-shrink:0;
}
.tool-card h3{font-size:1.1875rem;margin:18px 0 0;letter-spacing:-.015em}
.tool-card p{margin-top:9px;font-size:.9375rem;line-height:1.72;color:var(--body)}
.tool-card__tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.tool-card__tags span{font-size:.75rem;color:var(--muted);background:var(--soft);border:1px solid var(--line);padding:3px 9px;border-radius:999px}
.tool-card__more{margin-top:18px;font-size:.875rem;font-weight:600;color:var(--teal-dim);display:inline-flex;align-items:center;gap:5px}
.tool-card:hover .tool-card__more{color:var(--teal)}
.tool-card__more::after{content:"→";transition:transform .2s}
.tool-card:hover .tool-card__more::after{transform:translateX(3px)}

/* ---------- 分类矩阵 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;transition:transform .25s,border-color .25s,box-shadow .25s;
  display:flex;flex-direction:column;
}
.cat-card:hover{transform:translateY(-2px);border-color:var(--line-2);box-shadow:var(--shadow-sm)}
.cat-card__top{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.cat-card h3{font-size:1.0625rem;letter-spacing:-.01em}
.cat-card h3 a:hover{color:var(--teal-dim)}
.cat-card__n{font-size:.75rem;color:var(--teal-dim);font-weight:600;background:rgba(34,199,184,.1);padding:2px 8px;border-radius:999px}
.cat-card p{margin-top:10px;font-size:.875rem;line-height:1.65;color:var(--muted);flex:1}
.cat-card__list{margin-top:14px;display:flex;flex-wrap:wrap;gap:6px}
.cat-card__list a{font-size:.8125rem;color:var(--body);border-bottom:1px solid transparent}
.cat-card__list a:hover{color:var(--teal-dim);border-bottom-color:currentColor}

/* ---------- 特性 ---------- */
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:44px}
.feat{background:#fff;padding:30px 28px}
.feat b{display:flex;align-items:center;gap:10px;font-size:1.0625rem;color:var(--ink);letter-spacing:-.01em}
.feat b i{
  font-style:normal;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:var(--navy);color:var(--teal-bright);font-size:.75rem;font-weight:700;flex-shrink:0;
}
.feat p{margin-top:12px;font-size:.9375rem;line-height:1.72;color:var(--body)}

/* ---------- 适用人群 ---------- */
.who{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.who__item{border-left:2px solid var(--teal);padding:4px 0 4px 20px}
.who__item b{display:block;font-size:1rem;color:var(--ink)}
.who__item span{display:block;margin-top:6px;font-size:.9375rem;color:var(--body);line-height:1.7}

/* ---------- 使用步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:48px;counter-reset:s}
.step{position:relative;padding-top:52px}
.step::before{
  counter-increment:s;content:"0" counter(s);
  position:absolute;top:0;left:0;font-size:2.25rem;font-weight:700;color:var(--line-2);
  letter-spacing:-.04em;line-height:1;
}
.step b{display:block;font-size:1.0625rem;color:var(--ink)}
.step p{margin-top:9px;font-size:.9375rem;color:var(--body);line-height:1.72}

/* ---------- FAQ ---------- */
.faq{margin-top:40px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:22px 44px 22px 0;position:relative;
  font-size:1.0625rem;font-weight:600;color:var(--ink);letter-spacing:-.01em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:8px;top:50%;width:9px;height:9px;
  border-right:1.5px solid var(--muted);border-bottom:1.5px solid var(--muted);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s;
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq .ans{padding:0 44px 24px 0;font-size:.9375rem;line-height:1.82;color:var(--body);margin-top:-6px}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;background:var(--navy);color:#fff;
  padding:clamp(56px,7vw,88px) 0;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 380px at 20% 20%,rgba(34,199,184,.18),transparent 65%);
}
.cta__in{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta h2{color:#fff;font-size:clamp(1.6rem,2.8vw,2.25rem)}
.cta p{margin-top:14px;color:rgba(255,255,255,.66);font-size:1rem;max-width:40em}
.cta__acts{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.foot{background:#050F1F;color:rgba(255,255,255,.6);padding:64px 0 32px;font-size:.875rem}
.foot__top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.09)}
.foot__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot__brand img{width:34px;height:34px;border-radius:9px}
.foot__brand b{color:#fff;font-size:1rem;letter-spacing:.01em}
.foot p{color:rgba(255,255,255,.5);line-height:1.8;max-width:26em}
.foot h4{color:#fff;font-size:.8125rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:16px;font-weight:600}
.foot li+li{margin-top:9px}
.foot a:hover{color:var(--teal-bright)}
.foot__bot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:26px;color:rgba(255,255,255,.38);font-size:.8125rem}
.foot__bot a:hover{color:rgba(255,255,255,.7)}

/* ---------- 页面头（内页） ---------- */
.pagehead{background:var(--soft);border-bottom:1px solid var(--line);padding:calc(64px + 24px) 0 56px}
.pagehead--dark{background:var(--navy);border-bottom:0;color:#fff}
.pagehead--dark .crumbs{color:rgba(255,255,255,.5)}
.pagehead--dark .crumbs a:hover{color:#fff}
.pagehead--dark h1,.pagehead--dark .pagehead__lead{color:#fff}
.pagehead--dark .pagehead__lead{color:rgba(255,255,255,.66)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--muted)}
.crumbs a:hover{color:var(--ink)}
.crumbs i{font-style:normal;opacity:.5}
.pagehead h1{font-size:clamp(1.9rem,3.6vw,2.9rem);margin-top:18px;letter-spacing:-.03em}
.pagehead__lead{margin-top:16px;font-size:1.0625rem;line-height:1.8;color:var(--body);max-width:46em}
.pagehead__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.pagehead__meta span{font-size:.75rem;color:var(--muted);background:#fff;border:1px solid var(--line);padding:4px 11px;border-radius:999px}
.pagehead--dark .pagehead__meta span{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.14);color:rgba(255,255,255,.7)}

/* ---------- 工具列表（带筛选） ---------- */
.filter{position:sticky;top:72px;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:14px 0}
.filter__in{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.filter__search{position:relative;flex:1;min-width:200px;max-width:300px}
.filter__search input{
  width:100%;height:40px;border:1px solid var(--line-2);border-radius:999px;padding:0 16px 0 38px;
  font-size:.9375rem;color:var(--ink);background:#fff;outline:none;transition:border-color .2s,box-shadow .2s;
}
.filter__search input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(34,199,184,.14)}
.filter__search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted)}
.chips{display:flex;gap:7px;flex-wrap:wrap}
.chip{
  padding:7px 15px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:.875rem;color:var(--body);transition:all .18s;white-space:nowrap;
}
.chip:hover{border-color:var(--line-2);color:var(--ink)}
.chip.is-on{background:var(--navy);border-color:var(--navy);color:#fff;font-weight:600}
.chip em{font-style:normal;opacity:.55;margin-left:4px;font-size:.8125em}

.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px}
.tool-grid .tool-card{padding:20px}
.tool-grid .tool-card__ico{width:38px;height:38px;border-radius:11px;font-size:.9375rem}
.tool-grid .tool-card h3{font-size:1rem;margin-top:13px}
.tool-grid .tool-card p{font-size:.8125rem;line-height:1.62;margin-top:6px;color:var(--muted)}
.tool-grid .tool-card__more{margin-top:12px;font-size:.8125rem}
.empty{padding:60px 0;text-align:center;color:var(--muted)}

/* ---------- 工具详情 ---------- */
.article{padding:clamp(48px,6vw,80px) 0}
.article__grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(32px,5vw,72px);align-items:start}
.prose{max-width:none}
.prose h2{font-size:clamp(1.3rem,2.1vw,1.6rem);margin:44px 0 0;letter-spacing:-.02em}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.0625rem;margin:28px 0 0}
.prose p{margin-top:14px;font-size:1rem;line-height:1.88;color:var(--body)}
.prose ul,.prose ol{margin-top:16px;display:grid;gap:10px}
.prose li{position:relative;padding-left:24px;font-size:1rem;line-height:1.8;color:var(--body)}
.prose ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--teal)}
.prose ol{counter-reset:o}
.prose ol li::before{counter-increment:o;content:counter(o);position:absolute;left:0;top:.15em;font-size:.8125rem;font-weight:700;color:var(--teal-dim)}
.prose strong{color:var(--ink);font-weight:600}
.prose .lead{font-size:1.0625rem;line-height:1.9;color:var(--ink)}
.callout{
  margin-top:26px;padding:20px 22px;border-radius:var(--radius-sm);
  background:var(--soft);border:1px solid var(--line);border-left:2px solid var(--teal);
  font-size:.9375rem;line-height:1.8;color:var(--body);
}
.callout b{color:var(--ink)}

.side{position:sticky;top:96px;display:grid;gap:18px}
.side__box{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.side__box h3{font-size:.9375rem;margin:0 0 14px}
.side__box a{display:flex;align-items:center;gap:8px;font-size:.875rem;color:var(--body);padding:7px 0;border-bottom:1px dashed var(--line-2)}
.side__box a:last-child{border-bottom:0}
.side__box a:hover{color:var(--teal-dim)}
.side__box a i{font-style:normal;width:6px;height:6px;border-radius:2px;background:var(--line-2);flex-shrink:0}
.side__cta{background:var(--navy);border-color:var(--navy);color:#fff}
.side__cta h3{color:#fff}
.side__cta p{font-size:.875rem;line-height:1.7;color:rgba(255,255,255,.62);margin-bottom:16px}
.side__cta .btn{width:100%;padding:11px 16px;font-size:.9375rem}

/* ---------- 相关工具 ---------- */
.rel{margin-top:56px;padding-top:40px;border-top:1px solid var(--line)}
.rel h2{font-size:1.0625rem;margin-bottom:20px;color:var(--ink)}
.rel__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.rel__item{border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px;transition:border-color .2s,background .2s}
.rel__item:hover{border-color:var(--line-2);background:var(--soft)}
.rel__item b{display:block;font-size:.9375rem;color:var(--ink)}
.rel__item span{display:block;margin-top:5px;font-size:.8125rem;color:var(--muted);line-height:1.6}

/* ---------- 表格 ---------- */
.tbl{width:100%;border-collapse:collapse;margin-top:22px;font-size:.9375rem}
.tbl th,.tbl td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-size:.8125rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--soft);font-weight:600}
.tbl td{color:var(--body)}
.tbl tr:last-child td{border-bottom:0}
.tbl a{color:var(--teal-dim);font-weight:500}
.tbl-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.tbl-wrap .tbl{margin-top:0}


/* ---------- 小程序码 ---------- */
.qr{display:block;background:#fff;padding:7px;border-radius:11px;flex-shrink:0}
.qr--block{margin:14px auto 16px;border-radius:12px;box-shadow:0 8px 22px -14px rgba(13,27,46,.45)}
.cta__in--qr{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:48px;align-items:center}
.cta__in--qr .cta__acts{margin-top:30px}
.cta__qr{
  display:flex;align-items:center;gap:16px;padding:14px 20px 14px 14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);border-radius:20px;
}
.cta__qr b{display:block;color:#fff;font-size:.9375rem;margin-bottom:5px;letter-spacing:.01em}
.cta__qr small{display:block;color:rgba(255,255,255,.62);font-size:.8125rem;line-height:1.55}
.qrbar{
  display:flex;align-items:center;gap:22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:16px 22px;box-shadow:var(--shadow-sm);
}
.qrbar__txt b{display:block;font-size:1.0625rem;color:var(--ink);margin-bottom:5px}
.qrbar__txt span{display:block;font-size:.875rem;color:var(--muted);line-height:1.6;max-width:38em}
.qrbar__acts{margin-left:auto;flex-shrink:0}
.foot__qr{display:flex;align-items:center;gap:12px;margin-top:20px}
.foot__qr span{font-size:.8125rem;color:rgba(255,255,255,.5);line-height:1.5}

/* ---------- 真实截图 ---------- */
.section-head__lead{margin-top:14px;font-size:1rem;color:var(--muted);line-height:1.75;max-width:46em}
.shots{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;padding:6px 0 26px}
.shot{margin:0;min-width:0}
.shot img{width:100%;height:auto;border-radius:20px;background:#fff;
  border:1px solid rgba(13,27,46,.10);box-shadow:0 18px 40px -24px rgba(13,27,46,.55)}
.shot figcaption{text-align:center;font-size:.8125rem;color:var(--muted);margin-top:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (max-width:1024px){.shots{grid-template-columns:repeat(3,1fr);gap:16px}}
@media (max-width:640px){
  .shots{display:flex;overflow-x:auto;gap:16px;scroll-snap-type:x mandatory}
  .shot{flex:0 0 auto;width:210px;scroll-snap-align:start}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .tool-grid{grid-template-columns:repeat(3,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .feats{grid-template-columns:repeat(2,1fr)}
  .article__grid{grid-template-columns:1fr}
  .side{position:static;grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .nav__links{display:none}
  .nav__burger{display:flex}
  .nav__in{height:64px}
  .hero__in{grid-template-columns:1fr}
  .hero__visual{min-height:0;margin-top:20px;order:2}
  .stack{max-width:290px}
  .figures__in{grid-template-columns:repeat(2,1fr)}
  .figures__cell:nth-child(2){border-right:0}
  .figures__cell:nth-child(3),.figures__cell:nth-child(4){border-top:1px solid rgba(255,255,255,.08)}
  .tools-main{grid-template-columns:repeat(2,1fr)}
  .who{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr;gap:32px}
  .rel__grid{grid-template-columns:repeat(2,1fr)}
  .foot__top{grid-template-columns:1fr 1fr;gap:32px}
  .filter{top:64px}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .tool-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .cat-grid{grid-template-columns:1fr}
  .feats{grid-template-columns:1fr}
  .tools-main{grid-template-columns:1fr}
  .who{grid-template-columns:1fr}
  .rel__grid{grid-template-columns:1fr}
  .side{grid-template-columns:1fr}
  .hero__meta{gap:20px 24px}
  .hero__meta .v{font-size:1.25rem}
  .foot__top{grid-template-columns:1fr}
  .tool-card{padding:20px}
  .stack__float--a{left:-2%}
  .stack__float--b{right:-2%}
  .filter__search{max-width:none}
  .qrbar{flex-wrap:wrap;gap:14px}
  .qrbar__acts{margin-left:0;width:100%}
  .qrbar__acts .btn{width:100%}
  .cta__in--qr{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:48px;align-items:center}
.cta__in--qr .cta__acts{margin-top:30px}
.cta__qr{width:100%;justify-content:flex-start}
  .nav__cta{padding:9px 15px;font-size:.875rem}
  .nav__in{gap:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}