/* ============================================================================
   LUNA · 29800 OPC OS 深度陪跑 · opc.css
   ----------------------------------------------------------------------------
   概念 = 一根赤陶光带，从顶端一个点长出来，随滚动贯穿六幕，最终在「价格 · 申请」
   处铺成一整片暖光场 —— 一个 hero 元素跨场景生长，不是一堆独立板块。

   这是产品矩阵顶层（最高客单）。审美比 about/19.9 更克制、更稳、更有分量：
   更大的留白、更慢的节奏、更深的暖黑、单一赤陶 #E55C32 贯穿。高端不靠堆，靠留白
   + 字重 + 超大衬线 + 一个真人脸 + 一处实心赤陶（价格）。

   继承整站 DNA：暖深底 + 单一赤陶橙 + 衬线撑人味 + sans 撑系统 + mono 撑数据。
   ============================================================================ */

:root {
  --ink-900: #0b0b10;   /* 比 about 再深一档 · 顶层产品的稳 */
  --ink-850: #0f0f16;
  --ink-800: #15151e;
  --ink-700: #1c1c28;
  --ink-line:   rgba(255, 255, 255, 0.085);
  --ink-line-2: rgba(255, 255, 255, 0.05);

  /* 单一赤陶 accent（整站品牌串） */
  --brick:        #E55C32;
  --amber:        #f0a878;
  --amber-bright: #ffbb84;
  --amber-deep:   #e2855a;
  --peach:        #ffd9b8;
  --terra:        #c2421e;
  --terra-deep:   #7a2a12;

  --live: #6fe3c4;

  --text:       #f4efe9;
  --text-dim:   #b6afa6;
  --text-faint: #837d76;

  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans:  "Noto Sans SC", -apple-system, "PingFang SC", sans-serif;
  --mono:  "Space Mono", "SF Mono", ui-monospace, monospace;

  --r:    10px;
  --r-lg: 18px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --maxw: 1120px;

  --sp-1: 8px;  --sp-2: 16px;  --sp-3: 24px;  --sp-4: 32px;
  --sp-5: 48px; --sp-6: 64px;  --sp-7: 96px;  --sp-8: 128px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--ink-900);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
}
img { max-width: 100%; height: auto; display: block; }

/* 全页暖光底 + 噪声（反纯色 slop · 造电影空间感） */
body::before {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(58% 38% at 82% -6%, rgba(229, 92, 50, 0.15), transparent 64%),
    radial-gradient(50% 50% at 6% 106%, rgba(240, 168, 120, 0.06), transparent 70%);
}
body::after {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* 返回主页（任务指定 · 固定左上 · 热区足够大） */
.backhome {
  position: fixed; top: clamp(16px, 2.4vw, 26px); left: clamp(16px, 2.4vw, 26px);
  z-index: 20; display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 10px 18px 10px 14px; border-radius: 999px;
  font-family: var(--sans); font-size: 14px; font-weight: 600;
  color: var(--text-dim); text-decoration: none;
  background: rgba(11, 11, 16, 0.62); border: 1px solid var(--ink-line);
  backdrop-filter: blur(8px);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.backhome:hover { color: var(--amber-bright); border-color: rgba(229,92,50,0.5); transform: translateX(-2px); }
.backhome__arr { transition: transform 0.3s var(--ease); }
.backhome:hover .backhome__arr { transform: translateX(-3px); }

/* 光带（hero 元素 · 贯穿全页 · 随滚动生长） */
.beam { position: fixed; top: 0; left: clamp(20px, 4.5vw, 64px); width: 2px; height: 100vh; z-index: 3; pointer-events: none; }
.beam__track { position: absolute; inset: 0; background: var(--ink-line); }
.beam__fill {
  position: absolute; top: 0; left: -1px; width: 4px; height: var(--beam, 0%);
  background: linear-gradient(180deg, transparent, var(--brick) 14%, var(--amber-bright) 70%, var(--amber));
  box-shadow: 0 0 18px -2px var(--brick); transition: height 0.12s linear;
}
.beam__dot {
  position: absolute; left: -4px; top: var(--beam, 0%); width: 10px; height: 10px; border-radius: 50%;
  background: var(--amber-bright); box-shadow: 0 0 16px 1px var(--brick), 0 0 4px var(--amber-bright);
  transform: translateY(-50%); transition: top 0.12s linear;
}
@media (max-width: 768px) { .beam { display: none; } }

/* 顶栏（极简静态 · 不 sticky） */
.topbar {
  position: relative; z-index: 6;
  display: flex; align-items: center; justify-content: flex-end;
  padding: clamp(20px, 3vw, 30px) clamp(24px, 5vw, 72px);
}
.brand { display: none; } /* 桌面用 backhome + crumb · brand 留作语义 */
.crumb { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; color: var(--text-faint); }
.crumb a { color: var(--text-dim); text-decoration: none; }
.crumb a:hover { color: var(--amber); }

/* 通用 section */
.act { position: relative; z-index: 2; padding: clamp(76px, 12vw, 172px) clamp(24px, 6vw, 96px); }
.inner { max-width: var(--maxw); margin: 0 auto; }
.eyebrow {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.22em;
  color: var(--brick); text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--brick); opacity: 0.7; }

.sec-head { max-width: 820px; margin-bottom: clamp(48px, 7vw, 96px); }
.sec-title {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(32px, 6vw, 72px); line-height: 1.08; letter-spacing: -0.01em;
  margin-top: var(--sp-3);
}
.sec-title em { font-style: normal; color: var(--brick); }
.sec-lede {
  font-size: clamp(16px, 1.5vw, 19px); line-height: 1.78; color: var(--text-dim);
  margin-top: var(--sp-3); max-width: 680px;
}
.sec-lede b { color: var(--amber-bright); font-weight: 600; }

/* ═══════════════ 一 · HERO（锚定型 杂志封面）═══════════════ */
.hero {
  position: relative; z-index: 2; min-height: 100vh;
  display: grid; grid-template-columns: 1.08fr 0.92fr; gap: clamp(24px, 4vw, 64px);
  align-items: center;
  padding: clamp(8px, 2vw, 24px) clamp(24px, 6vw, 96px) clamp(48px, 7vw, 96px);
}
.hero__text { max-width: 660px; }
.hero__kicker {
  font-family: var(--mono); font-size: clamp(13px, 1.4vw, 14px); letter-spacing: 0.2em;
  color: var(--brick); margin-bottom: var(--sp-4);
}
.hero__name {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(54px, 9.5vw, 124px); line-height: 0.98; letter-spacing: -0.015em;
  margin-bottom: var(--sp-4);
}
.hero__name .ln { display: block; }
.hero__name em { font-style: normal; color: var(--brick); }
.hero__lede {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(20px, 2.7vw, 28px); line-height: 1.5; color: var(--text-dim);
  margin-bottom: var(--sp-4);
}
.hero__lede b { color: var(--amber-bright); font-weight: 600; font-style: normal; }
.hero__meta {
  display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-4);
  font-family: var(--mono); font-size: 14px; color: var(--text-faint); letter-spacing: 0.03em;
  margin-bottom: var(--sp-4);
}
.hero__meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero__meta span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--amber); }
.hero__jump {
  display: inline-flex; align-items: center; gap: 9px; min-height: 44px;
  font-family: var(--sans); font-size: 15px; font-weight: 600; color: var(--text-dim);
  text-decoration: none; transition: color 0.3s var(--ease);
}
.hero__jump:hover { color: var(--amber-bright); }
.hero__jump .arr { transition: transform 0.3s var(--ease); }
.hero__jump:hover .arr { transform: translateY(3px); }

.hero__portrait {
  position: relative; border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid var(--ink-line); box-shadow: 0 44px 96px -42px rgba(0,0,0,0.92);
  aspect-ratio: 732 / 1000;
}
.hero__portrait img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 20%; filter: saturate(1.02) contrast(1.02); }
.hero__portrait::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(190deg, transparent 50%, rgba(11,11,16,0.58) 100%),
              radial-gradient(80% 60% at 60% 0%, rgba(229,92,50,0.13), transparent 60%);
}
.hero__tag {
  position: absolute; left: 16px; bottom: 16px; z-index: 2;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--text);
  background: rgba(11,11,16,0.58); border: 1px solid var(--ink-line); border-radius: 6px;
  padding: 7px 12px; backdrop-filter: blur(6px);
}
.scrollhint {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 4;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; color: var(--text-faint);
  display: flex; flex-direction: column; align-items: center; gap: 9px;
}
.scrollhint .bar { width: 1px; height: 38px; background: linear-gradient(var(--brick), transparent); animation: hint 2.4s var(--ease) infinite; }
@keyframes hint { 0%,100%{ transform: scaleY(0.4); opacity: 0.5; transform-origin: top; } 50%{ transform: scaleY(1); opacity: 1; transform-origin: top; } }

/* ═══════════════ 二 · 这是给谁的（yes/no 筛客）═══════════════ */
.who { background: var(--ink-850); }
.who-split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3vw, 40px); }
.who-col {
  padding: clamp(28px, 3.4vw, 44px); border-radius: var(--r-lg);
  border: 1px solid var(--ink-line); background: linear-gradient(180deg, var(--ink-800), var(--ink-700));
}
.who-col--yes { border-color: rgba(229,92,50,0.28); }
.who-col__label {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.12em; margin-bottom: var(--sp-3);
}
.who-col--yes .who-col__label { color: var(--amber-bright); }
.who-col--no .who-col__label { color: var(--text-faint); }
.who-list { list-style: none; display: grid; gap: var(--sp-2); }
.who-list li {
  position: relative; padding-left: 30px; font-size: clamp(15px, 1.4vw, 17px); line-height: 1.66; color: var(--text-dim);
}
.who-list li::before {
  content: ""; position: absolute; left: 4px; top: 11px; width: 9px; height: 9px; border-radius: 50%;
  background: var(--brick); box-shadow: 0 0 10px -2px var(--brick);
}
.who-list--no li { color: var(--text-faint); }
.who-list--no li::before { background: none; border: 1.5px solid var(--text-faint); box-shadow: none; width: 9px; height: 9px; }
.who-col__foot {
  margin-top: var(--sp-3); padding-top: var(--sp-3); border-top: 1px solid var(--ink-line);
  font-family: var(--serif); font-style: italic; font-size: 16px; color: var(--text-dim);
}

/* ═══════════════ 三 · 陪跑出来的结果（3 卡 + OPC 系统图）═══════════════ */
.result-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 2.6vw, 32px);
  margin-bottom: clamp(56px, 8vw, 104px);
}
.result-card {
  padding: clamp(26px, 3vw, 38px); border-radius: var(--r-lg);
  border: 1px solid var(--ink-line-2); background: linear-gradient(180deg, var(--ink-700), var(--ink-850));
  box-shadow: 0 16px 38px -20px rgba(0,0,0,0.86);
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease), box-shadow 0.5s var(--ease);
  transform-style: preserve-3d;
}
.result-card:hover { border-color: rgba(229,92,50,0.32); box-shadow: 0 26px 60px -26px rgba(0,0,0,0.9), 0 0 44px -22px rgba(229,92,50,0.5); }
.result-card__no { font-family: var(--mono); font-size: 13px; letter-spacing: 0.1em; color: var(--brick); }
.result-card__h { font-family: var(--serif); font-weight: 700; font-size: clamp(21px, 2.3vw, 27px); line-height: 1.3; margin: var(--sp-2) 0 var(--sp-2); }
.result-card__p { font-size: clamp(15px, 1.3vw, 16px); line-height: 1.76; color: var(--text-dim); }

/* OPC OS 系统结构图（inline SVG） */
.osmap {
  border-radius: var(--r-lg); border: 1px solid var(--ink-line);
  background: linear-gradient(180deg, rgba(21,21,30,0.6), rgba(11,11,16,0.6));
  padding: clamp(24px, 3vw, 44px); overflow: hidden;
}
.osmap__cap {
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.12em; color: var(--text-faint);
  margin-bottom: var(--sp-3); display: inline-flex; align-items: center; gap: 9px;
}
.osmap__cap::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--brick); box-shadow: 0 0 10px var(--brick); }
.osmap__svg { width: 100%; height: auto; display: block; }
/* 系统图随滚动一笔笔点亮 */
.os-link { stroke-dasharray: 1; stroke-dashoffset: 1; }
.os-node, .os-core { opacity: 0; transform: translateY(10px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.osmap.lit .os-node { opacity: 1; transform: none; }
.osmap.lit .os-core { opacity: 1; transform: none; }
.osmap.lit .os-link { animation: osDraw 1.1s 0.2s var(--ease) forwards; }
@keyframes osDraw { to { stroke-dashoffset: 0; } }

/* ═══════════════ 四 · 交付什么（编号清单 + 边界）═══════════════ */
.deliver { background: var(--ink-850); }
.deliver-list { list-style: none; display: grid; gap: clamp(28px, 4vw, 48px); margin-bottom: clamp(48px, 7vw, 88px); }
.deliver-item { display: grid; grid-template-columns: 96px 1fr; gap: clamp(20px, 3vw, 44px); align-items: start; }
.deliver-item__no {
  font-family: var(--serif); font-weight: 900; font-size: clamp(40px, 5vw, 64px); line-height: 1;
  color: var(--brick); opacity: 0.92;
}
.deliver-item__body { max-width: 680px; padding-top: 6px; border-top: 1px solid var(--ink-line); }
.deliver-item__h { font-family: var(--serif); font-weight: 700; font-size: clamp(20px, 2.4vw, 28px); line-height: 1.3; margin: var(--sp-2) 0 10px; }
.deliver-item__p { font-size: clamp(15px, 1.4vw, 18px); line-height: 1.78; color: var(--text-dim); }

.bounds { padding: clamp(28px, 3.4vw, 40px); border-radius: var(--r-lg); border: 1px dashed var(--ink-line); background: rgba(255,255,255,0.015); }
.bounds__label { font-family: var(--mono); font-size: 13px; letter-spacing: 0.12em; color: var(--text-faint); margin-bottom: var(--sp-3); }
.bounds__row { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.bounds__chip {
  font-size: 14px; color: var(--text-dim); padding: 9px 16px; border-radius: 999px;
  border: 1px solid var(--ink-line); background: rgba(255,255,255,0.02);
}

/* ═══════════════ 五 · 信任锚（真人 + 落款）═══════════════ */
.trust__inner { display: grid; grid-template-columns: 0.82fr 1.18fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.trust__photo { border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--ink-line); aspect-ratio: 675/900; box-shadow: 0 36px 80px -40px rgba(0,0,0,0.9); }
.trust__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 16%; filter: saturate(1.02); }
.trust__q { font-family: var(--serif); font-weight: 700; font-size: clamp(26px, 4vw, 46px); line-height: 1.28; margin: var(--sp-3) 0 var(--sp-3); }
.trust__q em { font-style: normal; color: var(--brick); }
.trust__p { font-size: clamp(16px, 1.5vw, 18px); line-height: 1.82; color: var(--text-dim); margin-bottom: var(--sp-3); }
.trust__p b { color: var(--amber-bright); font-weight: 600; }
.trust__sign { font-family: var(--mono); font-size: 13px; letter-spacing: 0.08em; color: var(--text-faint); margin-top: var(--sp-2); }
.trust__sign b { color: var(--brick); font-weight: 400; }

/* ═══════════════ 六 · 价格与申请（实心赤陶高光 · 唯一最亮处）═══════════════ */
.apply { position: relative; overflow: hidden; }
.apply__ambient {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(60% 70% at 50% 18%, rgba(229,92,50,0.18), transparent 60%),
              radial-gradient(50% 50% at 50% 120%, rgba(240,168,120,0.08), transparent 64%);
}
.apply__inner { position: relative; z-index: 1; }
.apply__title { text-align: center; margin-left: auto; margin-right: auto; }
.sec-head:has(.apply__title) { margin-left: auto; margin-right: auto; text-align: center; }
.apply .sec-head { text-align: center; }
.apply .eyebrow { justify-content: center; }

.price-card {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 4vw, 56px);
  border-radius: 22px; overflow: hidden;
  border: 1px solid rgba(229,92,50,0.4);
  background: linear-gradient(165deg, rgba(28,28,40,0.96), rgba(15,15,22,0.98));
  box-shadow: 0 50px 110px -44px rgba(0,0,0,0.92), 0 0 70px -34px rgba(229,92,50,0.4);
}
.price-card__main {
  padding: clamp(36px, 4.4vw, 60px);
  background: radial-gradient(120% 90% at 0% 0%, rgba(229,92,50,0.1), transparent 60%);
  border-right: 1px solid var(--ink-line);
}
.price-card__kicker { font-family: var(--mono); font-size: 13px; letter-spacing: 0.06em; color: var(--amber); margin-bottom: var(--sp-3); }
.price-card__amount { display: flex; align-items: flex-start; gap: 4px; margin-bottom: var(--sp-2); }
.price-card__cur { font-family: var(--serif); font-weight: 700; font-size: clamp(28px, 3.4vw, 44px); color: var(--brick); margin-top: clamp(8px, 1vw, 16px); }
.price-card__num { font-family: var(--serif); font-weight: 900; font-size: clamp(64px, 11vw, 132px); line-height: 0.9; letter-spacing: -0.02em; color: var(--text); }
.price-card__note { font-size: clamp(14px, 1.3vw, 16px); color: var(--text-dim); line-height: 1.6; margin-bottom: var(--sp-3); }
.price-card__tags { display: flex; flex-wrap: wrap; gap: 10px; }
.price-tag { font-size: 13px; color: var(--text-dim); padding: 8px 15px; border-radius: 999px; border: 1px solid var(--ink-line); background: rgba(255,255,255,0.02); }
.price-tag--strong { color: #2a160c; font-weight: 700; background: var(--brick); border-color: transparent; box-shadow: 0 0 22px -8px var(--brick); }

.price-card__how { padding: clamp(36px, 4.4vw, 60px); display: flex; flex-direction: column; }
.how__label { font-family: var(--mono); font-size: 13px; letter-spacing: 0.12em; color: var(--text-faint); margin-bottom: var(--sp-3); }
.how-steps { list-style: none; display: grid; gap: var(--sp-2); margin-bottom: var(--sp-4); }
.how-step { display: flex; align-items: flex-start; gap: 14px; font-size: clamp(15px, 1.4vw, 17px); line-height: 1.6; color: var(--text-dim); }
.how-step__no {
  flex: none; width: 28px; height: 28px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 14px; font-weight: 700; color: var(--brick);
  border: 1px solid rgba(229,92,50,0.5); background: rgba(229,92,50,0.08);
}
.apply-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 56px; padding: 0 34px; border-radius: 999px;
  font-family: var(--sans); font-weight: 700; font-size: 17px; text-decoration: none;
  color: #2a160c; background: linear-gradient(180deg, var(--amber-bright), var(--brick));
  box-shadow: 0 14px 36px -12px rgba(229,92,50,0.7);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
  margin-top: auto;
}
.apply-btn:hover { transform: translateY(-2px); box-shadow: 0 20px 48px -12px rgba(229,92,50,0.85); }
.apply-btn .arr { transition: transform 0.3s var(--ease); }
.apply-btn:hover .arr { transform: translateX(4px); }
.how__foot { font-size: 13px; color: var(--text-faint); line-height: 1.6; margin-top: var(--sp-3); }

.apply__close {
  text-align: center; font-family: var(--serif); font-style: italic;
  font-size: clamp(18px, 2.4vw, 28px); line-height: 1.6; color: var(--text-dim);
  max-width: 740px; margin: clamp(48px, 7vw, 88px) auto 0;
}
.apply__close em { font-style: normal; color: var(--amber-bright); }
.br-m { display: none; }

/* 页脚 */
.foot {
  position: relative; z-index: 2; padding: clamp(40px, 6vw, 64px) clamp(24px, 6vw, 96px);
  border-top: 1px solid var(--ink-line);
  display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-4); align-items: center; justify-content: space-between;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; color: var(--text-faint);
}
.foot a { color: var(--text-dim); text-decoration: none; }
.foot a:hover { color: var(--amber); }

/* ───────────── 滚动入场（一次 well-orchestrated reveal · IO 门控）───────────── */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: 0.08s; }
.reveal[data-d="2"] { transition-delay: 0.16s; }
.reveal[data-d="3"] { transition-delay: 0.24s; }
.reveal[data-d="4"] { transition-delay: 0.32s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .beam__fill, .beam__dot { transition: none; }
  .scrollhint .bar { animation: none; }
  .os-node, .os-core { opacity: 1; transform: none; }
  .os-link { stroke-dashoffset: 0; }
  .result-card:hover { transform: none; }
}

/* ───────────── 响应式 · 3 档拐点 ───────────── */
/* 手机：≤480 + ≤768 都走单列 IP 海报形态 */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr; min-height: auto; align-content: start;
    padding: clamp(56px, 14vw, 80px) 22px clamp(40px, 10vw, 64px);
    gap: clamp(28px, 7vw, 40px);
  }
  .hero__name { font-size: clamp(52px, 15vw, 84px); }
  .hero__lede { font-size: clamp(20px, 5vw, 24px); }
  .hero__meta { font-size: 15px; }
  .hero__portrait { max-width: 440px; margin: 0 auto; aspect-ratio: 732/940; order: -1; }
  .scrollhint { display: none; }
  .crumb { display: none; }
  .topbar { padding: 14px 22px; min-height: 1px; }

  .act { padding: clamp(56px, 16vw, 88px) 22px; }
  .sec-title { font-size: clamp(30px, 8.4vw, 48px); }
  .sec-lede { font-size: clamp(16px, 4.6vw, 19px); }

  .who-split { grid-template-columns: 1fr; gap: var(--sp-3); }
  .who-list li { font-size: 16px; }

  .result-grid { grid-template-columns: 1fr; gap: var(--sp-3); }
  .result-card__p { font-size: 16px; }

  .deliver-item { grid-template-columns: 1fr; gap: 10px; }
  .deliver-item__no { font-size: clamp(36px, 13vw, 52px); }
  .deliver-item__body { border-top: 0; padding-top: 0; }
  .deliver-item__p { font-size: 16px; }

  .trust__inner { grid-template-columns: 1fr; gap: var(--sp-4); }
  .trust__photo { max-width: 360px; margin: 0 auto; aspect-ratio: 675/820; }
  .trust__p { font-size: 17px; }

  .price-card { grid-template-columns: 1fr; }
  .price-card__main { border-right: 0; border-bottom: 1px solid var(--ink-line); }
  .price-card__num { font-size: clamp(72px, 22vw, 110px); }
  .how-step { font-size: 16px; }
  .br-m { display: inline; }

  .backhome { font-size: 13px; padding: 9px 15px 9px 12px; }
}

@media (max-width: 480px) {
  .hero__name { font-size: clamp(48px, 14.5vw, 72px); }
  .price-card__main, .price-card__how { padding: 28px 22px; }
  .who-col { padding: 26px 22px; }
}

/* 小平板 / 大手机横屏 */
@media (min-width: 769px) and (max-width: 1080px) {
  .hero { grid-template-columns: 1.12fr 0.88fr; }
  .hero__name { font-size: clamp(64px, 11vw, 108px); }
  .result-grid { gap: 20px; }
  .who-split { gap: 20px; }
}

/* 桌面端正文字号底线兜底（peer audience 中年也读得舒服） */
@media (min-width: 769px) {
  .who-list li, .result-card__p, .deliver-item__p, .trust__p, .sec-lede { font-size: 18px; }
}

/* ═══════════ P4.5 craft 高端化层（负责人终审「设计感升级」· 2026-07-03）═══════════ */
body::after { content:""; position:fixed; inset:0; z-index:2; pointer-events:none; opacity:.03; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
.apply-btn .arr { display:inline-flex; align-items:center; justify-content:center; width:26px; height:26px; border-radius:50%; margin-left:4px; font-size:13px; background:rgba(42,22,12,.16); box-shadow:inset 0 1px 0 rgba(255,255,255,.2); transition:transform .45s cubic-bezier(.32,.72,0,1), background .45s cubic-bezier(.32,.72,0,1); }
.apply-btn:hover .arr { transform:translate(3px,-1px) scale(1.06); background:rgba(42,22,12,.26); }
.apply-btn:active { transform:translateY(0) scale(.985); }
a:focus-visible, button:focus-visible { outline:2px solid var(--amber-bright,#ffbb84); outline-offset:3px; border-radius:8px; }
.price-card__num, .price-card__cur { font-variant-numeric: tabular-nums; }
.sec-title, .hero__name, .trust__q { text-wrap: balance; }
.sec-lede, .result-card__p, .deliver-item__p, .trust__p { text-wrap: pretty; }