/* 石器时代 2.5 网页版 宣传站 —— 暖土色、石板、木纹 */
:root {
  --sand: #f4e6c8;
  --sand-2: #ead6ad;
  --bone: #fff8e8;
  --clay: #c8642a;
  --clay-2: #e0803b;
  --ember: #f2a33a;
  --moss: #5f8a35;
  --moss-2: #86b04a;
  --bark: #3b2416;
  --bark-2: #5a3824;
  --wood: #8a5a32;
  --stone: #b8b2a6;
  --stone-2: #8f897d;
  --stone-3: #5f5a52;
  --ink: #2b1b10;
  --ink-2: #5d4635;
  --sky: #2f5b4a;
  --radius: 18px;
  --shadow: 0 2px 0 rgba(0,0,0,.18), 0 18px 40px -18px rgba(43,27,16,.55);
  --display: "ZCOOL KuaiLe", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.23 0 0 0 0 0.14 0 0 0 0 0.08 0 0 0 .5 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 72px; }
body {
  margin: 0;
  font: 400 16px/1.75 var(--body);
  color: var(--ink);
  background: var(--sand);
  background-image: var(--noise), radial-gradient(1200px 600px at 10% 0%, #f9eed6 0%, transparent 60%);
  background-size: 160px 160px, auto;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--clay); text-underline-offset: 3px; }
a:hover { color: var(--bark); }
h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.2; margin: 0; letter-spacing: .02em; text-wrap: balance; }
.hero__lead, .section-head p, .feature__copy > p { text-wrap: pretty; }
p { margin: 0; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--bark); color: var(--bone); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--ember); outline-offset: 3px; border-radius: 6px; }

/* ── 按钮：石板 ── */
.btn {
  --b1: var(--clay-2); --b2: var(--clay);
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; padding: 12px 26px; min-height: 48px;
  font: 400 18px/1.1 var(--display); letter-spacing: .06em; color: #fff; text-decoration: none; text-align: center;
  background: linear-gradient(180deg, var(--b1), var(--b2));
  border: 3px solid var(--bark);
  border-radius: 14px 18px 12px 16px;
  box-shadow: inset 0 3px 0 rgba(255,255,255,.35), inset 0 -5px 0 rgba(0,0,0,.22), 0 5px 0 var(--bark), 0 14px 24px -10px rgba(43,27,16,.7);
  text-shadow: 0 2px 0 rgba(59,36,22,.6);
  transition: transform .12s ease, box-shadow .12s ease, filter .12s;
  cursor: pointer; white-space: nowrap;
}
.btn:hover { color: #fff; filter: brightness(1.07) saturate(1.05); transform: translateY(-2px); box-shadow: inset 0 3px 0 rgba(255,255,255,.35), inset 0 -5px 0 rgba(0,0,0,.22), 0 7px 0 var(--bark), 0 18px 28px -10px rgba(43,27,16,.7); }
.btn:active { transform: translateY(4px); box-shadow: inset 0 3px 0 rgba(255,255,255,.25), inset 0 -3px 0 rgba(0,0,0,.2), 0 1px 0 var(--bark); }
.btn--small { padding: 8px 18px; min-height: 40px; font-size: 16px; border-width: 2px; box-shadow: inset 0 2px 0 rgba(255,255,255,.35), inset 0 -3px 0 rgba(0,0,0,.2), 0 3px 0 var(--bark); }
.btn--hero { padding: 18px 40px 16px; font-size: clamp(24px, 3.2vw, 34px); }
.btn--hero .btn__hint { font: 500 13px/1.3 var(--body); letter-spacing: .08em; opacity: .92; text-shadow: none; }
.btn--ghost {
  background: rgba(255,248,232,.12); color: var(--bone); border-color: rgba(255,248,232,.55);
  box-shadow: none; text-shadow: none; backdrop-filter: blur(4px);
}
.btn--ghost:hover { background: rgba(255,248,232,.22); box-shadow: none; }

/* ── 导航：木板 ── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(180deg, #6b4428, #4c2f1c);
  background-image: var(--noise), repeating-linear-gradient(90deg, rgba(0,0,0,.08) 0 2px, transparent 2px 120px), linear-gradient(180deg, #6b4428, #4a2d1a);
  border-bottom: 3px solid var(--bark);
  box-shadow: 0 6px 18px -8px rgba(0,0,0,.6);
}
.nav__inner { max-width: 1200px; margin: 0 auto; padding: 8px 20px; display: flex; align-items: center; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--bone); flex-shrink: 0; }
.brand__icon { width: 40px; height: auto; filter: drop-shadow(0 2px 0 rgba(0,0,0,.4)); }
.brand__text { font: 400 22px/1 var(--display); letter-spacing: .06em; text-shadow: 0 2px 0 rgba(0,0,0,.45); display: flex; align-items: baseline; gap: 8px; }
.brand__text small { font: 700 12px/1 var(--body); color: var(--ember); letter-spacing: .1em; }
.nav__links { display: flex; gap: 4px; margin-left: auto; }
.nav__links a { color: #f3e2c2; text-decoration: none; padding: 8px 12px; border-radius: 10px; font-weight: 500; font-size: 15px; }
.nav__links a:hover { background: rgba(255,255,255,.1); color: #fff; }

/* ── HERO ── */
.hero { position: relative; color: var(--bone); overflow: hidden; isolation: isolate; }
.hero__bg {
  position: absolute; inset: 0; z-index: -2;
  background: url("/img/shots/village-hero.webp") center 40% / cover no-repeat;
  filter: saturate(1.1);
  transform: scale(1.04);
}
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 520px at 22% 45%, rgba(30,16,8,.86) 0%, rgba(30,16,8,.55) 55%, rgba(30,16,8,.25) 100%),
    linear-gradient(180deg, rgba(30,16,8,.35), rgba(30,16,8,.15) 40%, rgba(30,16,8,.75));
}
.hero__inner {
  max-width: 1200px; margin: 0 auto; padding: clamp(48px, 8vw, 104px) 20px clamp(88px, 10vw, 128px);
  display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center;
}
.hero__kicker { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.hero__kicker span {
  font-size: 13px; font-weight: 700; letter-spacing: .12em; padding: 4px 12px; border-radius: 999px;
  background: rgba(242,163,58,.18); color: #ffd79a; border: 1px solid rgba(242,163,58,.5);
}
.hero__title { display: flex; flex-direction: column; gap: 6px; }
.hero__title-main {
  font-size: clamp(64px, 11vw, 132px); line-height: .95; letter-spacing: .04em;
  color: #f7ead0;
  background: linear-gradient(180deg, #fff6e0 0%, #f2d9a6 45%, #d9a65a 60%, #f4dfb3 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 4px 0 #3b2416) drop-shadow(0 10px 18px rgba(0,0,0,.55));
}
.hero__title-sub {
  align-self: flex-start; font-size: clamp(22px, 3vw, 34px); letter-spacing: .14em;
  color: #fff; background: var(--moss); padding: 4px 16px 6px; border-radius: 10px 14px 8px 12px;
  border: 3px solid var(--bark); box-shadow: 0 4px 0 var(--bark); transform: rotate(-2deg); margin-top: 6px;
  text-shadow: 0 2px 0 rgba(0,0,0,.35);
}
.hero__lead { margin: 22px 0 30px; font-size: clamp(16px, 1.6vw, 18px); color: #f1e2c6; max-width: 34em; text-shadow: 0 1px 2px rgba(0,0,0,.6); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.hero__badges { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 22px; padding: 0; margin: 28px 0 0; font-size: 15px; color: #e9d6b2; }
.hero__badges li { display: flex; align-items: baseline; gap: 4px; }
.hero__badges li::before { content: "◆"; color: var(--ember); font-size: 10px; margin-right: 6px; transform: translateY(-2px); }
.hero__badges b { font: 400 24px/1 var(--display); color: #ffd79a; }
.hero__visual { position: relative; }
.hero__shot { transform: rotate(1.6deg); }
.hero__pet { position: absolute; image-rendering: auto; filter: drop-shadow(0 8px 6px rgba(0,0,0,.45)); pointer-events: none; }
.hero__pet--a { width: clamp(100px, 12vw, 160px); left: -12%; bottom: -16%; animation: bob 4s ease-in-out infinite; }
.hero__pet--b { width: clamp(56px, 6.5vw, 88px); right: -3%; top: -16%; animation: bob 3.2s ease-in-out -1s infinite; }
.hero__pet--c { width: clamp(48px, 5.5vw, 72px); right: 14%; bottom: -16%; animation: bob 3.6s ease-in-out -2s infinite; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.hero__ground {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 56px; z-index: 1;
  background: var(--sand);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 56' preserveAspectRatio='none'%3E%3Cpath d='M0 30 C80 10 140 40 220 24 S380 6 460 26 620 44 700 22 860 4 940 24 1100 42 1200 18 V56 H0Z'/%3E%3C/svg%3E") center / 100% 100% no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 56' preserveAspectRatio='none'%3E%3Cpath d='M0 30 C80 10 140 40 220 24 S380 6 460 26 620 44 700 22 860 4 940 24 1100 42 1200 18 V56 H0Z'/%3E%3C/svg%3E") center / 100% 100% no-repeat;
}

/* ── 石框截图 ── */
.stone-frame {
  margin: 0; position: relative; padding: 10px; border-radius: 22px 18px 24px 16px;
  background: linear-gradient(145deg, #d9d3c6, #a39c8e 55%, #7e776b);
  background-image: var(--noise), linear-gradient(145deg, #dcd6c9, #a39c8e 55%, #7c7569);
  border: 3px solid #3d3830;
  box-shadow: inset 0 2px 0 rgba(255,255,255,.55), inset 0 -4px 0 rgba(0,0,0,.25), 0 8px 0 #3d3830, 0 30px 50px -20px rgba(0,0,0,.7);
}
.stone-frame img { border-radius: 12px; border: 2px solid #2d2924; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: #2a3a22; }
.stone-frame::before, .stone-frame::after {
  content: ""; position: absolute; width: 14px; height: 14px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #f0e8d8, #8e877a 60%, #4b463e);
  box-shadow: 0 1px 0 rgba(0,0,0,.5); top: -7px;
}
.stone-frame::before { left: 22px; } .stone-frame::after { right: 22px; }

/* ── 卖点 ── */
.points { max-width: 1200px; margin: 0 auto; padding: 24px 20px 40px; position: relative; z-index: 2; }
.points__grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.point {
  position: relative; padding: 24px 22px 22px 22px; border-radius: var(--radius);
  background: var(--bone); background-image: var(--noise); background-size: 160px;
  border: 2px solid #d8bf91; box-shadow: var(--shadow);
  display: grid; grid-template-columns: 76px 1fr; grid-template-rows: auto 1fr; column-gap: 16px; align-items: center;
}
.point img { grid-row: 1 / 3; width: 76px; height: 76px; object-fit: contain; align-self: center; filter: drop-shadow(0 4px 3px rgba(0,0,0,.25)); }
.point h3 { font-size: 22px; color: var(--bark); }
.point p { font-size: 14.5px; color: var(--ink-2); line-height: 1.65; margin-top: 4px; align-self: start; }

/* ── 区块标题 ── */
.section-head { text-align: center; max-width: 720px; margin: 0 auto 44px; padding: 0 20px; }
.eyebrow {
  display: inline-block; font: 700 13px/1 var(--body); letter-spacing: .3em; color: var(--clay);
  padding: 6px 4px 6px 14px; border-top: 2px solid currentColor; border-bottom: 2px solid currentColor; margin-bottom: 14px;
}
.section-head h2, .mobile h2 { font-size: clamp(32px, 5vw, 52px); color: var(--bark); }
.section-head p:not(.eyebrow) { margin-top: 10px; color: var(--ink-2); }
.section-head--light h2 { color: var(--bone); }
.section-head--light p:not(.eyebrow) { color: #d9c8a8; }
.section-head--light .eyebrow { color: var(--ember); }

/* ── 特色 ── */
.features { padding: 72px 0 40px; }
.feature {
  max-width: 1160px; margin: 0 auto 84px; padding: 0 20px;
  display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center;
}
.feature--flip .feature__shot { order: 2; }
.feature__shot { transform: rotate(-1deg); }
.feature--flip .feature__shot { transform: rotate(1deg); }
.tag {
  display: inline-block; font: 400 15px/1 var(--display); letter-spacing: .1em; color: #fff; background: var(--moss);
  padding: 7px 14px 8px; border-radius: 8px 12px 8px 10px; border: 2px solid var(--bark); box-shadow: 0 3px 0 var(--bark); margin-bottom: 16px;
}
.feature h3 { font-size: clamp(24px, 3vw, 34px); color: var(--bark); margin-bottom: 14px; }
.feature__copy > p { color: var(--ink-2); }
.ticks { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
.ticks li { position: relative; padding-left: 30px; font-size: 15px; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: .42em; width: 18px; height: 14px;
  background: var(--clay); border-radius: 50% 40% 45% 55%; box-shadow: inset -2px -2px 0 rgba(0,0,0,.2), 0 1px 0 var(--bark);
}
.ticks li::after { content: ""; position: absolute; left: 5px; top: calc(.42em + 3px); width: 6px; height: 4px; border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(-45deg); }

.stats {
  list-style: none; max-width: 1100px; margin: 0 auto; padding: 26px 20px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px;
  background: var(--bark); background-image: var(--noise), linear-gradient(180deg, #4d3020, #35200f); border-radius: 22px; border: 3px solid #24150b;
  box-shadow: inset 0 2px 0 rgba(255,255,255,.08), var(--shadow); color: var(--bone); text-align: center;
}
.stats li { display: flex; flex-direction: column; gap: 2px; }
.stats b { font: 400 clamp(28px, 4vw, 44px)/1.1 var(--display); color: var(--ember); text-shadow: 0 3px 0 rgba(0,0,0,.4); }
.stats span { font-size: 14px; color: #d9c6a4; letter-spacing: .1em; }
.stats-wrap { padding: 0 20px; }

/* ── 画廊 ── */
.gallery {
  margin-top: 80px; padding: 84px 20px 92px; color: var(--bone); position: relative;
  background: #2c3d24; background-image: var(--noise), radial-gradient(900px 400px at 50% 0%, #4c6b33 0%, transparent 70%), linear-gradient(180deg, #3b5129, #24311c);
  border-top: 4px solid var(--bark); border-bottom: 4px solid var(--bark);
}
.gallery__grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; grid-auto-flow: dense; }
.shot {
  position: relative; padding: 0; border: 3px solid #1b1209; border-radius: 14px; overflow: hidden; cursor: zoom-in; background: #111;
  box-shadow: 0 6px 0 #1b1209, 0 20px 30px -18px rgba(0,0,0,.8); transition: transform .2s ease;
}
.shot:hover { transform: translateY(-4px) rotate(-.5deg); }
.shot img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .4s ease; }
.shot:hover img { transform: scale(1.04); }
.shot span {
  position: absolute; left: 10px; bottom: 10px; font: 400 15px/1 var(--display); color: #fff; letter-spacing: .08em;
  background: rgba(43,27,16,.82); padding: 7px 12px 8px; border-radius: 8px; border: 1px solid rgba(255,255,255,.18);
}
.shot--wide { grid-column: span 2; grid-row: span 2; }
.shot--wide:last-child { grid-row: span 1; }
.shot--wide:last-child img { aspect-ratio: auto; object-position: center; }

.lightbox { padding: 0; border: 0; background: transparent; max-width: min(96vw, 1280px); max-height: 92vh; overflow: visible; }
.lightbox::backdrop { background: rgba(20,12,6,.88); backdrop-filter: blur(3px); }
.lightbox img { max-height: 88vh; width: auto; border-radius: 12px; border: 4px solid var(--bark); box-shadow: 0 30px 80px rgba(0,0,0,.6); }
.lightbox__close {
  position: absolute; top: -18px; right: -14px; width: 44px; height: 44px; border-radius: 50%; border: 3px solid var(--bark);
  background: var(--clay); color: #fff; font-size: 26px; line-height: 1; cursor: pointer; box-shadow: 0 3px 0 var(--bark);
}

/* ── 手机 ── */
.mobile { padding: 96px 20px 72px; }
.mobile__inner { max-width: 1120px; margin: 0 auto; display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(28px, 6vw, 72px); align-items: center; }
.mobile h2 { margin-bottom: 14px; }
.mobile__copy > p { color: var(--ink-2); }
.mobile .btn { margin-top: 26px; }
.phone {
  position: relative; padding: 14px 22px; border-radius: 40px; background: #1d1714;
  border: 3px solid #0d0a08; box-shadow: inset 0 0 0 2px #3c332d, 0 30px 60px -25px rgba(0,0,0,.75); transform: rotate(-3deg);
}
.phone::before { content: ""; position: absolute; left: 8px; top: 50%; width: 6px; height: 46px; transform: translateY(-50%); border-radius: 4px; background: #2d2622; }
.phone__screen { border-radius: 24px; overflow: hidden; background: #000; }
.phone__screen img { width: 100%; aspect-ratio: 1266 / 585; object-fit: cover; }

/* ── 新手上路 ── */
.start { padding: 72px 20px 80px; background: var(--sand-2); background-image: var(--noise); border-top: 3px dashed #c9ac78; border-bottom: 3px dashed #c9ac78; }
.steps { list-style: none; padding: 0; max-width: 1160px; margin: 0 auto 48px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.step { position: relative; background: var(--bone); border: 2px solid #d4b98a; border-radius: var(--radius); padding: 34px 20px 22px; box-shadow: var(--shadow); }
.step__no {
  position: absolute; top: -22px; left: 18px; width: 48px; height: 44px; display: grid; place-items: center;
  font: 400 26px/1 var(--display); color: #fff; background: var(--clay); border: 3px solid var(--bark);
  border-radius: 48% 52% 44% 56% / 56% 46% 54% 44%; box-shadow: 0 3px 0 var(--bark);
}
.step h3 { font-size: 22px; color: var(--bark); margin-bottom: 6px; }
.step p { font-size: 15px; color: var(--ink-2); }
.controls { max-width: 1160px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.wood {
  color: var(--bone); border-radius: 20px; padding: 26px 26px 22px; border: 3px solid #24150b;
  background: #6b4428; background-image: var(--noise), repeating-linear-gradient(0deg, rgba(0,0,0,.07) 0 2px, transparent 2px 9px, rgba(255,255,255,.04) 9px 10px, transparent 10px 23px), linear-gradient(180deg, #7a4f2e, #5a3822);
  box-shadow: inset 0 2px 0 rgba(255,255,255,.12), 0 6px 0 #24150b, 0 24px 30px -18px rgba(0,0,0,.6);
}
.controls h3 { font-size: 24px; margin-bottom: 14px; color: #ffe3b0; }
.controls dl { margin: 0; display: grid; gap: 10px; }
.controls dl > div { display: grid; grid-template-columns: minmax(120px, 42%) 1fr; gap: 12px; padding-bottom: 10px; border-bottom: 1px dashed rgba(255,227,176,.25); }
.controls dl > div:last-child { border-bottom: 0; padding-bottom: 0; }
.controls dt { font-weight: 700; color: #fff; }
.controls dt::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 2px; background: var(--ember); transform: rotate(45deg) translateY(-2px); margin-right: 10px; }
.controls dd { margin: 0; color: #ecd9b8; font-size: 15px; }
.start__more { text-align: center; margin-top: 36px; font-size: 16px; }
.start__more a { font-weight: 700; }

/* ── FAQ ── */
.faq { padding: 80px 20px; }
.faq__list { max-width: 860px; margin: 0 auto; display: grid; gap: 14px; }
.faq details { background: var(--bone); border: 2px solid #d4b98a; border-radius: 16px; box-shadow: 0 3px 0 #d4b98a; overflow: hidden; }
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 56px 18px 22px; font-weight: 700; font-size: 17px; color: var(--bark); position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 18px; top: 50%; width: 30px; height: 30px; transform: translateY(-50%);
  display: grid; place-items: center; font: 400 22px/1 var(--display); color: #fff; background: var(--moss); border-radius: 50%; border: 2px solid var(--bark); transition: transform .2s;
}
.faq details[open] summary::after { content: "−"; background: var(--clay); }
.faq details p { padding: 0 22px 20px; color: var(--ink-2); }

/* ── 结尾 CTA ── */
.final { padding: 20px 20px 96px; }
.final__inner {
  position: relative; max-width: 1080px; margin: 0 auto; text-align: center; padding: 64px 24px 60px; border-radius: 28px; color: var(--bone);
  background: #8a3f1c; background-image: var(--noise), radial-gradient(600px 300px at 50% 0%, rgba(255,190,90,.45), transparent 70%), linear-gradient(180deg, #b4542a, #7a3416);
  border: 4px solid var(--bark); box-shadow: inset 0 3px 0 rgba(255,255,255,.2), 0 8px 0 var(--bark), 0 40px 60px -30px rgba(0,0,0,.7);
}
.final h2 { font-size: clamp(30px, 5vw, 52px); text-shadow: 0 4px 0 rgba(43,27,16,.6); }
.final p { margin: 10px 0 30px; color: #ffe1bf; }
.final .btn { --b1: var(--moss-2); --b2: var(--moss); }
.final__pet { position: absolute; bottom: -10px; filter: drop-shadow(0 8px 6px rgba(0,0,0,.4)); }
.final__pet--l { left: 4%; width: clamp(80px, 12vw, 150px); animation: bob 3.8s ease-in-out infinite; }
.final__pet--r { right: 4%; width: clamp(70px, 10vw, 130px); animation: bob 3.3s ease-in-out -1.4s infinite; }

/* ── 页脚 ── */
.footer { background: #24150b; background-image: var(--noise); color: #cdb894; padding: 48px 20px 110px; border-top: 4px solid #120a04; }
.footer__inner { max-width: 1100px; margin: 0 auto; display: grid; gap: 22px; }
.footer__brand { display: flex; align-items: center; gap: 12px; }
.footer__brand img { width: 40px; }
.footer__brand strong { display: block; font: 400 22px/1.2 var(--display); color: var(--bone); }
.footer__brand span { font-size: 13px; letter-spacing: .1em; }
.footer__links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer__links a { color: #f1d9ad; text-decoration: none; }
.footer__links a:hover { color: #fff; text-decoration: underline; }
.footer__legal { font-size: 13px; line-height: 1.8; color: #a99272; max-width: 62em; border-top: 1px solid rgba(255,255,255,.08); padding-top: 20px; }
.footer__legal strong { color: #d8c09a; }
.footer__copy { font-size: 13px; color: #85704f; }

/* 手机悬浮按钮 */
.float-cta { display: none; }

/* 进场动画 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__pet, .final__pet { animation: none; }
}

/* ── 响应式 ── */
@media (max-width: 1080px) {
  .nav__links a { padding: 8px 8px; font-size: 14px; }
  .points__grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 36px; }
  .gallery__grid { grid-template-columns: repeat(2, 1fr); }
  .shot--wide { grid-row: span 1; }
}
@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav .btn--small { margin-left: auto; }
  .hero__inner { grid-template-columns: 1fr; text-align: left; }
  .hero__visual { max-width: 560px; margin: 12px auto 0; width: 88%; }
  .feature, .feature--flip { grid-template-columns: 1fr; margin-bottom: 64px; }
  .feature--flip .feature__shot { order: 0; }
  .stats { grid-template-columns: repeat(3, 1fr); row-gap: 20px; margin: 0 20px; }
  .mobile__inner { grid-template-columns: 1fr; }
  .controls { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  body { font-size: 15px; }
  .nav__inner { padding: 8px 16px; gap: 10px; }
  .brand__text { font-size: 19px; }
  .brand__text small { display: none; }
  .hero__inner { padding: 36px 16px 84px; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { width: 100%; }
  .br-wide { display: none; }
  .hero__visual { width: 92%; }
  .points { padding: 16px 16px 24px; }
  .points__grid { grid-template-columns: 1fr; gap: 14px; }
  .point { grid-template-columns: 60px 1fr; padding: 18px 16px; }
  .point img { width: 60px; height: 60px; }
  .feature { padding: 0 16px; }
  .stats { grid-template-columns: repeat(2, 1fr); margin: 0 16px; }
  .stats li:last-child { grid-column: span 2; }
  .gallery { padding: 64px 16px 72px; }
  .gallery__grid { grid-template-columns: 1fr; gap: 14px; }
  .shot--wide { grid-column: auto; }
  .mobile { padding: 72px 16px 56px; }
  .phone { padding: 10px 16px; border-radius: 28px; }
  .phone__screen { border-radius: 16px; }
  .start { padding: 64px 16px; }
  .steps { grid-template-columns: 1fr; }
  .controls dl > div { grid-template-columns: 1fr; gap: 2px; }
  .wood { padding: 22px 18px 18px; }
  .faq { padding: 64px 16px; }
  .final { padding: 8px 16px 80px; }
  .final__inner { padding: 48px 18px 96px; }
  .final .btn { width: 100%; }
  .float-cta {
    display: flex; position: fixed; left: 16px; right: 16px; bottom: calc(14px + env(safe-area-inset-bottom)); z-index: 60;
    transform: translateY(140%); transition: transform .3s ease;
  }
  .float-cta.show { transform: none; }
  .float-cta.show:active { transform: translateY(4px); }
}