/* ============================================================================
   落地页 · Liquid Glass 2.0
   ============================================================================ */
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 22px; }

/* ------------------------------------------------------------ 顶部导航 */
.nav {
  position: sticky; top: calc(12px + var(--safe-t)); z-index: 100;
  max-width: 1120px; margin: calc(12px + var(--safe-t)) auto 0;
  display: flex; align-items: center; gap: 12px;
  padding: 8px 10px 8px 16px; border-radius: 999px;
  background: rgba(255,255,255,.62);
  background-color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.7);
  box-shadow: var(--shadow), inset 0 1px 0 #fff;
}
.nav .mark {
  width: 32px; height: 32px; border-radius: 10px; flex: 0 0 auto;
  background: linear-gradient(150deg, var(--accent), var(--accent-2) 58%, var(--accent-3));
  display: grid; place-items: center; color: #fff;
  box-shadow: 0 7px 16px -7px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,.42);
}
.nav .name { font-weight: 680; font-size: 15px; letter-spacing: -.028em; white-space: nowrap; }
.nav-links { display: flex; gap: 2px; margin-left: 10px; }
.nav-links a { padding: 7px 13px; border-radius: 999px; font-size: 14px; font-weight: 520; color: var(--ink-2); }
.nav-links a:hover { background: var(--fill); color: var(--ink); text-decoration: none; }
@media (max-width: 900px) { .nav-links { display: none; } }
@media (max-width: 420px) { .nav .name { display: none; } }

/* ------------------------------------------------------------ Hero */
.hero { padding: clamp(46px, 8vw, 84px) 0 clamp(30px, 5vw, 54px); text-align: center; }
.hero .pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px 6px 7px; border-radius: 999px; font-size: 13px; font-weight: 550;
  background: rgba(255,255,255,.76); border: 1px solid rgba(255,255,255,.85);
  box-shadow: var(--shadow-sm); color: var(--ink-2);
  
}
.hero .pill .tag { background: var(--accent); color: #fff; padding: 2px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 640; }
.hero h1 {
  font-size: clamp(31px, 6vw, 62px); line-height: 1.08; font-weight: 730;
  letter-spacing: -.045em; margin: 20px auto 18px; max-width: 900px;
}
.hero h1 .grad {
  background: linear-gradient(100deg, var(--accent), var(--accent-2) 45%, var(--accent-3) 82%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { font-size: clamp(15px, 1.7vw, 18.5px); color: var(--ink-3); max-width: 660px; margin: 0 auto 28px; line-height: 1.72; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-note { margin-top: 15px; font-size: 12.5px; color: var(--muted); }

/* ------------------------------------------------------------ macOS 窗口 */
.mac {
  max-width: 1020px; margin: clamp(30px, 5vw, 48px) auto 0;
  border-radius: 22px; overflow: hidden;
  background: rgba(255,255,255,.68);
  background-color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.85);
  box-shadow: 0 50px 110px -46px rgba(16,24,40,.46), 0 0 0 1px rgba(0,0,0,.03), inset 0 1px 0 #fff;
}
.mac-bar { display: flex; align-items: center; gap: 9px; padding: 12px 16px; border-bottom: 1px solid var(--hairline-soft); background: rgba(255,255,255,.5); }
.traffic { display: flex; gap: 8px; }
.traffic i { width: 12px; height: 12px; border-radius: 50%; display: block; }
.traffic i:nth-child(1) { background: #FF5F57; } .traffic i:nth-child(2) { background: #FEBC2E; } .traffic i:nth-child(3) { background: #28C840; }
.mac-title { flex: 1; text-align: center; font-size: 12.5px; font-weight: 570; color: var(--ink-3); }
.mac-body { display: flex; min-height: 400px; }
.mac-side { width: 200px; flex: 0 0 200px; padding: 14px 10px; border-right: 1px solid var(--hairline-soft); background: rgba(255,255,255,.36); }
.mac-side .it { display: flex; align-items: center; gap: 9px; padding: 8px 10px; border-radius: 10px; font-size: 13px; color: var(--ink-2); margin-bottom: 2px; }
.mac-side .it.on { background: #fff; font-weight: 580; box-shadow: var(--shadow-xs); }
.mac-side .it .ico { color: var(--ink-3); } .mac-side .it.on .ico { color: var(--accent); }
.mac-main { flex: 1; min-width: 0; padding: 18px 22px; display: flex; flex-direction: column; gap: 13px; }
.bub { display: flex; gap: 11px; max-width: 90%; }
.bub.me { align-self: flex-end; flex-direction: row-reverse; }
.bub .av { width: 30px; height: 30px; border-radius: 50%; flex: 0 0 auto; display: grid; place-items: center; color: #fff; font-size: 12px; font-weight: 660; }
.bub .av.u { background: linear-gradient(150deg, #34C759, #1E8E3E); }
.bub .av.a { background: linear-gradient(150deg, var(--accent), var(--accent-2)); }
.bub .txt { padding: 10px 14px; border-radius: 16px; font-size: 13.5px; line-height: 1.68; background: #fff; box-shadow: var(--shadow-xs); border: 1px solid var(--hairline-soft); }
.bub.me .txt { background: var(--accent); color: #fff; border-color: transparent; }
.mac-input {
  margin-top: auto; display: flex; align-items: center; gap: 10px;
  padding: 10px 10px 10px 16px; border-radius: 15px; background: #fff;
  border: 1px solid var(--hairline-soft); box-shadow: var(--shadow-xs); font-size: 13.5px; color: var(--faint);
}
.mac-input .go { width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; flex: 0 0 auto; }
.typing { display: inline-flex; gap: 4px; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--faint); animation: blink 1.3s infinite; }
.typing i:nth-child(2) { animation-delay: .18s; } .typing i:nth-child(3) { animation-delay: .36s; }
@keyframes blink { 0%, 60%, 100% { opacity: .28; } 30% { opacity: 1; } }
@media (max-width: 760px) { .mac-side { display: none; } .mac-body { min-height: 320px; } }

/* ------------------------------------------------------------ 章节 */
.sec { padding: clamp(52px, 8vw, 84px) 0; }
.sec-head { text-align: center; max-width: 660px; margin: 0 auto clamp(30px, 5vw, 46px); }
.sec-head .eyebrow { font-size: 12.5px; font-weight: 660; color: var(--accent); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 12px; }
.sec-head h2 { font-size: clamp(24px, 4vw, 38px); font-weight: 710; line-height: 1.2; }
.sec-head p { color: var(--ink-3); font-size: clamp(14.5px, 1.6vw, 16px); margin: 13px 0 0; line-height: 1.7; }

/* ------------------------------------------------------------ 功能卡 */
.feats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.feats > * { min-width: 0; }
@media (max-width: 980px) { .feats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .feats { grid-template-columns: minmax(0, 1fr); } }
.feat {
  padding: 24px; border-radius: var(--r-lg);
  background: rgba(255,255,255,.72);
  background-color: rgba(255,255,255,.82);
  border: 1px solid rgba(255,255,255,.8);
  box-shadow: var(--shadow-sm), inset 0 1px 0 #fff;
  transition: transform .3s var(--spring), box-shadow .3s var(--ease);
}
.feat:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feat .ic {
  width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center;
  margin-bottom: 15px; color: #fff;
  background: linear-gradient(150deg, var(--accent), var(--accent-2));
  box-shadow: 0 11px 24px -13px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,.36);
}
.feat:nth-child(2) .ic { background: linear-gradient(150deg, #34C759, #11998E); }
.feat:nth-child(3) .ic { background: linear-gradient(150deg, #FF9500, #FF3B30); }
.feat:nth-child(4) .ic { background: linear-gradient(150deg, #AF52DE, #5856D6); }
.feat:nth-child(5) .ic { background: linear-gradient(150deg, #30B0C7, #0A84FF); }
.feat:nth-child(6) .ic { background: linear-gradient(150deg, #FF2D55, #AF52DE); }
.feat h3 { font-size: 16.5px; margin-bottom: 8px; }
.feat p { color: var(--ink-3); font-size: 13.8px; line-height: 1.72; margin: 0; }

/* ------------------------------------------------------------ 供应商墙 */
.prov-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 11px; }
.prov-grid > * { min-width: 0; }
.prov {
  display: flex; align-items: center; gap: 11px; padding: 12px 15px; border-radius: 17px;
  background: rgba(255,255,255,.68);
  background-color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.78); box-shadow: var(--shadow-xs);
  transition: transform .26s var(--spring), box-shadow .26s var(--ease);
}
.prov:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.prov .nm { font-size: 13.5px; font-weight: 580; }
.prov .kd { font-size: 11.5px; color: var(--muted); }

/* ------------------------------------------------------------ 步骤 */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
@media (max-width: 860px) { .steps { grid-template-columns: minmax(0, 1fr); } }
.step {
  padding: 24px; border-radius: var(--r-lg); background: rgba(255,255,255,.7);
  background-color: rgba(255,255,255,.82);
  border: 1px solid rgba(255,255,255,.8); box-shadow: var(--shadow-sm);
}
.step .n {
  width: 32px; height: 32px; border-radius: 11px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent-ink); font-weight: 700; font-size: 14px; margin-bottom: 13px;
}
.step h3 { font-size: 16px; margin-bottom: 7px; }
.step p { margin: 0; color: var(--ink-3); font-size: 13.6px; line-height: 1.7; }

/* ------------------------------------------------------------ 定价 */
.prices { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-items: start; }
@media (max-width: 920px) { .prices { grid-template-columns: minmax(0, 1fr); } }
.price {
  padding: 28px 25px; border-radius: var(--r-lg); position: relative;
  background: rgba(255,255,255,.74);
  background-color: rgba(255,255,255,.82);
  border: 1px solid rgba(255,255,255,.82); box-shadow: var(--shadow-sm);
}
.price.hot { border: 1.5px solid var(--accent); box-shadow: 0 30px 70px -30px var(--accent-glow), inset 0 1px 0 #fff; }
.price .tag {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; padding: 4px 14px; border-radius: 999px;
  font-size: 11.5px; font-weight: 650; white-space: nowrap;
}
.price h3 { font-size: 15px; color: var(--ink-3); font-weight: 600; }
.price .amt { font-size: 37px; font-weight: 730; letter-spacing: -.045em; margin: 8px 0 4px; }
.price .amt small { font-size: 14px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.price ul { list-style: none; padding: 0; margin: 20px 0 23px; display: flex; flex-direction: column; gap: 11px; }
.price li { display: flex; gap: 10px; font-size: 13.6px; color: var(--ink-2); align-items: flex-start; }
.price li .ico { color: var(--green); margin-top: 2px; }

/* ------------------------------------------------------------ FAQ */
.faq { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.qa {
  border-radius: 17px; overflow: hidden; background: rgba(255,255,255,.7);
  background-color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.8); box-shadow: var(--shadow-xs);
}
.qa summary {
  padding: 15px 19px; font-size: 14.6px; font-weight: 580; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; list-style: none;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary .ico { color: var(--muted); transition: transform .26s var(--spring); }
.qa[open] summary .ico { transform: rotate(180deg); }
.qa .a { padding: 0 19px 17px; color: var(--ink-3); font-size: 13.8px; line-height: 1.75; }
.qa .a code { background: var(--fill); padding: 1.5px 6px; border-radius: 6px; font-family: var(--mono); font-size: 12.5px; }

/* ------------------------------------------------------------ CTA + 页脚 */
.cta-band {
  padding: clamp(36px, 6vw, 58px) clamp(22px, 5vw, 40px); border-radius: 32px; text-align: center; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2) 55%, var(--accent-3));
  box-shadow: 0 40px 92px -42px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,.3);
}
.cta-band h2 { font-size: clamp(23px, 3.6vw, 34px); }
.cta-band p { opacity: .93; margin: 12px 0 25px; font-size: 15.5px; }
.cta-band .btn { background: #fff; color: var(--accent-ink); border: none; box-shadow: 0 14px 30px -14px rgba(0,0,0,.5); }

.foot { padding: 52px 0 30px; border-top: 1px solid var(--hairline-soft); margin-top: clamp(40px, 7vw, 70px); }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 28px; margin-bottom: 30px; }
.foot-grid > * { min-width: 0; }
@media (max-width: 800px) { .foot-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 22px; } }
.foot h4 { font-size: 12.5px; font-weight: 660; color: var(--faint); letter-spacing: .06em; text-transform: uppercase; margin-bottom: 12px; }
.foot a { display: block; color: var(--ink-3); font-size: 13.6px; padding: 4.5px 0; }
.foot a:hover { color: var(--accent-ink); text-decoration: none; }
.foot .bottom {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding-top: 21px; border-top: 1px solid var(--hairline-soft); font-size: 12.6px; color: var(--muted);
}

/* 公告条 */
.notice {
  max-width: 1120px; margin: 14px auto 0; padding: 11px 18px; border-radius: 16px;
  display: flex; align-items: center; gap: 10px; font-size: 13.4px;
  background: var(--accent-soft); border: 1px solid var(--accent-line); color: var(--accent-ink);
  background-color: rgba(255,255,255,.85);
}

/* ------------------------------------------------------------ 安全信任带 */
.trust {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px;
}
.t-item {
  display: flex; align-items: center; gap: 12px; padding: 15px 18px; border-radius: 18px;
  background: var(--glass, rgba(255,255,255,.55));
  border: 1px solid var(--hairline-soft);
  box-shadow: 0 10px 26px -18px rgba(17,24,40,.22);
  transition: transform .35s var(--ease, cubic-bezier(.22,1,.36,1)), box-shadow .35s;
}
.t-item:hover { transform: translateY(-3px); box-shadow: 0 22px 40px -24px rgba(17,24,40,.3); }
.t-item > span { flex: none; width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  color: var(--accent-ink); background: var(--accent-soft); border: 1px solid var(--accent-line); }
.t-item b { display: block; font-size: 13.8px; font-weight: 680; color: var(--ink, #1c1f27); }
.t-item small { display: block; margin-top: 3px; font-size: 11.8px; color: var(--muted); letter-spacing: .01em; }
@media (max-width: 900px) { .trust { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .trust { grid-template-columns: 1fr; gap: 10px; } }