/* ==========================================================
   张松 × 崔杨 · 婚礼纪念 — 海报杂志
   纸白 × 炭黑 × 荧光珊瑚
   七章：封面 / 初见 / 内页 / 拼贴 / 大字 / 影册 / 封底
   ========================================================== */

:root{
  --paper:#F2EFE9;
  --paper-2:#E2DCD0;
  --paper-3:#FBF9F4;
  --ink:#141414;
  --ink-2:#4A4A4A;
  --gray:#8A93A0;
  --red:#FF4A2B;
  --cyan:#2B8FFF;
  --line:rgba(20,20,20,.14);

  --serif:"Songti SC","Source Han Serif SC","Noto Serif CJK SC","STSong",SimSun,"Noto Serif SC",serif;
  --sans:"Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  --mono:"SF Mono",Menlo,Consolas,"Courier New",monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
  --pad-x:clamp(24px,7vw,110px);
  --mh:46px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--serif);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
::selection{background:var(--red);color:var(--paper-3)}

/* ---------- 开场：四色套印 ---------- */
html.intro-lock,html.intro-lock body{overflow:hidden}

.intro{
  position:fixed;inset:0;z-index:120;cursor:pointer;
  background:var(--paper);
  clip-path:inset(0 0 0 0);
  transition:clip-path .9s cubic-bezier(.66,0,.34,1);
}
.intro.done{clip-path:inset(0 0 100% 0)}
.intro.done .in-center,.intro.done .in-flash{opacity:0;transition:opacity .2s linear}

.in-sheet{
  position:absolute;inset:0;
  background:radial-gradient(125% 92% at 50% 38%,#FBF9F4 0%,#F2EFE9 52%,#E4DED1 100%);
  animation:sheetIn .5s var(--ease) both;
}
@keyframes sheetIn{from{opacity:0}to{opacity:1}}

/* 背景巨型年份（底部出血水印） */
.in-year{
  position:absolute;left:50%;bottom:-8vh;
  transform:translateX(-50%);
  font-family:var(--serif);font-weight:400;
  font-size:clamp(140px,26vw,420px);line-height:.78;
  letter-spacing:-.04em;color:rgba(20,20,20,.055);
  white-space:nowrap;pointer-events:none;opacity:0;
  animation:yearIn 1.9s var(--ease) .3s both;
}
@keyframes yearIn{
  from{opacity:0;transform:translateX(-50%) translateY(26px)}
  to{opacity:1;transform:translateX(-50%) translateY(0)}
}

/* 珊瑚色带扫屏 */
.in-band{
  position:absolute;left:0;right:0;top:0;height:15vh;
  background:linear-gradient(180deg,
    rgba(255,74,43,0) 0%,rgba(255,74,43,.14) 42%,rgba(255,74,43,.2) 60%,rgba(255,74,43,0) 100%);
  opacity:0;pointer-events:none;
  animation:bandSweep 1.15s cubic-bezier(.42,0,.58,1) .22s both;
}
@keyframes bandSweep{
  0%{opacity:0;transform:translateY(-22vh)}
  18%{opacity:1}
  82%{opacity:1}
  100%{opacity:0;transform:translateY(118vh)}
}

/* 四角套准十字 */
.in-mk{position:absolute;width:26px;height:26px;opacity:0;animation:mkIn .55s var(--ease) both}
.in-mk::before,.in-mk::after{content:"";position:absolute;background:var(--ink);opacity:.5}
.in-mk::before{left:0;right:0;top:50%;height:1px}
.in-mk::after{top:0;bottom:0;left:50%;width:1px}
.in-mk1{left:clamp(18px,3.6vw,50px);top:clamp(18px,3.6vw,50px);animation-delay:.1s}
.in-mk2{right:clamp(18px,3.6vw,50px);top:clamp(18px,3.6vw,50px);animation-delay:.17s}
.in-mk3{left:clamp(18px,3.6vw,50px);bottom:clamp(18px,3.6vw,50px);animation-delay:.24s}
.in-mk4{right:clamp(18px,3.6vw,50px);bottom:clamp(18px,3.6vw,50px);animation-delay:.31s}
@keyframes mkIn{
  from{opacity:0;transform:scale(.35) rotate(-45deg)}
  to{opacity:1;transform:none}
}

/* 走纸滚轴 */
.in-roller{
  position:absolute;left:0;right:0;height:1px;background:var(--ink);
  opacity:0;transform:scaleX(0);
}
.in-r1{top:23%;transform-origin:left;animation:roll 1.05s var(--ease) .3s both}
.in-r2{bottom:23%;transform-origin:right;animation:roll 1.05s var(--ease) .42s both}
@keyframes roll{
  0%{opacity:0;transform:scaleX(0)}
  25%{opacity:.45}
  70%{opacity:.35}
  100%{opacity:0;transform:scaleX(1)}
}

/* 中央名牌 */
.in-center{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:min(96vw,1700px);text-align:center;
  animation:zoomAway 1s cubic-bezier(.62,0,.78,.35) 2.32s forwards;
}
@keyframes zoomAway{
  0%{transform:translate(-50%,-50%) scale(1);opacity:1;filter:blur(0)}
  100%{transform:translate(-50%,-50%) scale(1.34);opacity:0;filter:blur(7px)}
}
.in-kick{
  font-family:var(--mono);font-size:10px;letter-spacing:.52em;text-indent:.52em;
  color:var(--ink-2);opacity:0;
  animation:fadeUp .7s var(--ease) .48s both;
}
.in-names{
  position:relative;margin:.16em 0 .1em;
  font-family:var(--serif);font-weight:400;
  font-size:clamp(40px,11.7vw,170px);line-height:1.06;
  letter-spacing:.06em;text-indent:.06em;color:var(--ink);
  white-space:nowrap;
  animation:focusIn 1.2s var(--ease) .55s both;
}
.in-names i{
  position:absolute;left:0;right:0;top:0;
  font-style:normal;color:#FFD400;opacity:0;
  pointer-events:none;
  animation:kIn 1.2s var(--ease) .55s both;
}
.in-names::before,.in-names::after{
  content:attr(data-t);position:absolute;left:0;right:0;top:0;
  pointer-events:none;
}
.in-names::before{color:#00AEEF;animation:cIn 1.2s var(--ease) .55s both}
.in-names::after{color:#EC008C;animation:mIn 1.2s var(--ease) .55s both}

@keyframes focusIn{
  0%{opacity:0;letter-spacing:.2em;filter:blur(1.6px)}
  18%{opacity:1;letter-spacing:.17em;filter:blur(0)}
  62%{letter-spacing:.08em;filter:blur(0)}
  74%{transform:translateX(-3px)}
  82%{transform:translateX(2px)}
  100%{letter-spacing:.06em;filter:blur(0);transform:none}
}
@keyframes cIn{
  0%{opacity:0;transform:translate(-26px,10px)}
  18%{opacity:.96;transform:translate(-26px,10px)}
  58%{opacity:.96;transform:translate(6px,-2px)}
  72%{opacity:.9;transform:translate(-4px,1.5px)}
  100%{opacity:0;transform:translate(0,0)}
}
@keyframes mIn{
  0%{opacity:0;transform:translate(26px,-10px)}
  18%{opacity:.96;transform:translate(26px,-10px)}
  58%{opacity:.96;transform:translate(-6px,2px)}
  72%{opacity:.9;transform:translate(4px,-1.5px)}
  100%{opacity:0;transform:translate(0,0)}
}
@keyframes kIn{
  0%{opacity:0;transform:translate(0,20px)}
  18%{opacity:.9;transform:translate(0,20px)}
  58%{opacity:.9;transform:translate(0,5px)}
  100%{opacity:0;transform:translate(0,0)}
}

.in-rule{
  margin:clamp(26px,3.6vh,50px) auto .9em;width:min(300px,50vw);height:1px;
  background:var(--red);transform:scaleX(0);
  animation:ruleGrow .95s var(--ease) 1.1s both;
}
@keyframes ruleGrow{from{transform:scaleX(0)}to{transform:scaleX(1)}}

.in-date{
  font-family:var(--serif);font-size:clamp(12.5px,1.45vw,17px);
  letter-spacing:.32em;text-indent:.32em;color:var(--ink-2);opacity:0;
  animation:fadeUp .85s var(--ease) 1.2s both;
}

/* 半调网点扩散 */
.in-half{
  position:absolute;left:50%;top:50%;width:min(1400px,180vw);aspect-ratio:1;
  pointer-events:none;opacity:0;
  transform:translate(-50%,-50%) scale(.14);
  background-image:
    radial-gradient(circle,rgba(236,0,140,.62) 1.6px,transparent 1.9px),
    radial-gradient(circle,rgba(0,174,239,.55) 1.6px,transparent 1.9px);
  background-size:17px 17px,17px 17px;
  background-position:0 0,8.5px 8.5px;
  -webkit-mask-image:radial-gradient(circle,#000 0%,rgba(0,0,0,.42) 44%,transparent 68%);
  mask-image:radial-gradient(circle,#000 0%,rgba(0,0,0,.42) 44%,transparent 68%);
  animation:halfBurst 1.55s cubic-bezier(.28,.72,.32,1) 1.62s both;
}
@keyframes halfBurst{
  0%{opacity:0;transform:translate(-50%,-50%) scale(.14)}
  26%{opacity:1}
  72%{opacity:.5}
  100%{opacity:0;transform:translate(-50%,-50%) scale(1.34)}
}

/* 冲散后归于白纸 */
.in-flash{
  position:absolute;inset:0;background:var(--paper);opacity:0;
  pointer-events:none;
  animation:flashIn .72s cubic-bezier(.4,0,.7,1) 2.62s forwards;
}
@keyframes flashIn{from{opacity:0}to{opacity:1}}

.in-corner{
  position:absolute;left:var(--pad-x);bottom:clamp(58px,8vh,74px);
  font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--ink-2);
  opacity:0;animation:fadeUp .7s var(--ease) 1.65s both;
}
.in-skip{
  position:absolute;right:var(--pad-x);bottom:clamp(58px,8vh,74px);
  font-family:var(--sans);font-size:10px;letter-spacing:.2em;
  color:rgba(20,20,20,.38);opacity:0;
  animation:fadeUp .7s var(--ease) 1.9s both;
}

@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* 开幕后封面醒来的那一下 */
#p1.wake .leaf{animation:wakeIn .95s cubic-bezier(.2,.7,.3,1) both}
@keyframes wakeIn{
  from{opacity:.4;transform:scale(1.016)}
  to{opacity:1;transform:none}
}

/* ---------- 刊头 ---------- */
#masthead{
  position:fixed;top:0;left:0;right:0;height:var(--mh);z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(18px,3.4vw,54px);
  background:rgba(242,239,233,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  font-family:var(--sans);
  transition:height .45s var(--ease);
}
body.slim #masthead{height:34px}
.mh-left{display:flex;align-items:baseline;gap:14px}
.mh-left b{font-weight:400;font-size:12px;letter-spacing:.2em}
.mh-sub{font-size:10px;letter-spacing:.34em;color:var(--gray);transition:opacity .3s}
body.slim .mh-sub{opacity:0}
.mh-right{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--ink)}
.mh-total{color:var(--gray)}

/* ---------- 右侧进度 ---------- */
#rail{
  position:fixed;right:clamp(9px,1.4vw,20px);top:var(--mh);bottom:0;
  width:1px;background:var(--line);z-index:55;pointer-events:none;
}
#rail i{position:absolute;top:0;left:-.5px;width:2px;height:0;background:var(--red)}

/* ---------- 左侧校样线 ---------- */
#binder{
  position:fixed;left:clamp(14px,2.6vw,42px);top:var(--mh);bottom:0;
  width:1px;background:rgba(20,20,20,.11);z-index:54;pointer-events:none;
}

/* ---------- 自定义光标 ---------- */
#cur{
  position:fixed;left:0;top:0;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(20,20,20,.42);
  z-index:95;pointer-events:none;opacity:0;
  transform:translate3d(-50%,-50%,0);
  transition:width .32s var(--ease),height .32s var(--ease),opacity .3s var(--ease),
             border-color .3s,background .3s;
  display:flex;align-items:center;justify-content:center;
}
#cur.on{width:74px;height:74px;border-color:var(--red);background:rgba(255,74,43,.07)}
#cur span{
  font-family:var(--sans);font-size:9px;letter-spacing:.2em;color:var(--red);
  opacity:0;transition:opacity .22s var(--ease);
}
#cur.on span{opacity:1}
@media (pointer:coarse){#cur{display:none}}

/* ---------- 跨页 / 翻页 ---------- */
#book{position:relative}
.spread{
  position:relative;height:100vh;height:100svh;
  perspective:1700px;perspective-origin:left center;
}
.leaf{
  position:relative;width:100%;height:100%;overflow:hidden;
  background:var(--paper);
  transform-origin:left center;
  transform:rotateY(-8deg) translateZ(-30px);
  opacity:0;
  transition:transform 1.15s var(--ease),opacity .7s var(--ease);
  backface-visibility:hidden;
}
.spread.in .leaf{transform:none;opacity:1}
.leaf::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:46px;z-index:8;
  background:linear-gradient(90deg,rgba(20,20,20,.075),rgba(20,20,20,.018) 55%,transparent);
  pointer-events:none;
}

/* 长页（影册） */
.spread.tall{height:auto;perspective:none}
.spread.tall .leaf{
  height:auto;overflow:visible;
  padding:calc(var(--mh) + clamp(34px,6vh,72px)) var(--pad-x) clamp(56px,9vh,120px);
  transform:translateY(24px);
}
.spread.tall.in .leaf{transform:none}

/* ---------- 照片位 ---------- */
.ph{position:relative;background:var(--paper-2);overflow:hidden}
.ph::after{
  content:attr(data-label);position:absolute;left:11px;bottom:9px;
  font-family:var(--sans);font-size:10px;letter-spacing:.2em;
  color:rgba(20,20,20,.34);
}
.ph img{width:100%;height:100%;object-fit:cover;display:block}
.ph:has(img)::after{content:none}

/* ---------- 通用部件 ---------- */
.kick{
  display:flex;align-items:baseline;gap:13px;
  font-family:var(--sans);font-size:11px;line-height:1;
  letter-spacing:.34em;text-transform:uppercase;color:var(--ink);
}
.kick em{font-style:normal;font-family:var(--serif);font-size:12px;letter-spacing:.28em;color:var(--gray)}
.kick-abs{position:absolute;left:var(--pad-x);top:clamp(58px,9vh,96px);z-index:4}

.page-no{
  position:absolute;right:clamp(16px,2.2vw,30px);bottom:clamp(14px,2.2vh,24px);
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  color:var(--ink-2);z-index:6;
}
.rule-line{
  position:absolute;left:var(--pad-x);right:var(--pad-x);top:12vh;height:1px;
  background:var(--line);transform:scaleX(0);transform-origin:left;
  transition:transform 1s var(--ease) .4s;z-index:3;
}
.spread.in .rule-line{transform:scaleX(1)}
.rule-top{top:auto;bottom:24vh}

/* ==========================================================
   01 封面
   ========================================================== */
.cover-photo{
  position:absolute;inset:0;will-change:transform;cursor:zoom-in;
  transform:scale(1.07) translate3d(0,0,0);
}
.cover-veil{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(100deg,rgba(242,239,233,.94) 0%,rgba(242,239,233,.76) 32%,rgba(242,239,233,.1) 62%,rgba(242,239,233,0) 100%);
}
.cover-body{position:absolute;left:var(--pad-x);top:50%;transform:translateY(-46%);z-index:3}

/* 出血巨型年份水印 */
.cover-years{
  position:absolute;right:-7%;top:50%;
  transform:translate3d(0,-50%,0);
  font-family:var(--sans);font-weight:400;
  font-size:clamp(90px,15.5vw,235px);line-height:.82;letter-spacing:-.035em;
  color:rgba(20,20,20,.12);
  white-space:nowrap;z-index:2;pointer-events:none;user-select:none;
  will-change:transform;
}

/* 印刷扫线 */
.cover-scan{
  position:absolute;left:0;right:0;top:0;height:1px;
  background:var(--red);z-index:5;
  transform:translateY(-1px);opacity:0;
}
.spread.in .cover-scan{animation:scan 1.9s cubic-bezier(.4,0,.9,.5) .15s forwards}
@keyframes scan{
  0%{transform:translateY(0);opacity:1}
  82%{opacity:1}
  100%{transform:translateY(100vh);opacity:0}
}
.cover-names{
  display:flex;flex-direction:column;overflow:hidden;
  margin:26px 0 20px;font-weight:400;line-height:.92;letter-spacing:.01em;
}
.cn-1,.cn-2{display:block;font-size:clamp(58px,10.4vw,152px);font-family:var(--serif)}
.cn-1{transform:translateY(112%);opacity:0;transition:transform 1.15s var(--ease) .16s,opacity .9s var(--ease) .16s}
.cn-2{color:rgba(20,20,20,.18);margin-left:.6em;transform:translateY(112%);opacity:0;transition:transform 1.15s var(--ease) .28s,opacity .9s var(--ease) .28s}
.spread.in .cn-1,.spread.in .cn-2{transform:none;opacity:1}
.cx{font-style:normal;font-size:.24em;color:var(--red);vertical-align:.62em;margin-right:.16em;letter-spacing:0}
.cover-en{font-family:var(--sans);font-size:11px;letter-spacing:.4em;color:var(--ink-2)}
.cover-foot{
  position:absolute;left:var(--pad-x);right:var(--pad-x);bottom:7vh;z-index:3;
  display:flex;justify-content:space-between;
  font-family:var(--sans);font-size:11px;letter-spacing:.22em;color:var(--ink-2);
}

/* ==========================================================
   02 左图右文
   ========================================================== */
.half{position:absolute;top:0;bottom:0}
.half-photo{left:0;width:48%}
.half-photo .ph{width:100%;height:100%;clip-path:inset(0 100% 0 0)}
.half-text{
  right:0;width:52%;position:absolute;
  padding:clamp(60px,10vh,110px) clamp(26px,4vw,68px) clamp(52px,9vh,88px);
  display:flex;flex-direction:column;justify-content:center;
}
.qmark{
  position:absolute;left:clamp(14px,2.6vw,44px);top:clamp(70px,11vh,118px);
  font-family:var(--serif);font-size:clamp(50px,4.6vw,76px);line-height:.72;
  color:var(--red);z-index:1;pointer-events:none;
}
.lead{
  position:relative;z-index:2;
  font-family:var(--serif);font-size:clamp(21px,2.5vw,35px);
  line-height:1.5;margin:18px 0 32px;letter-spacing:.01em;
}
.cols{
  column-count:2;column-gap:clamp(18px,2vw,32px);column-rule:1px solid var(--line);
  font-size:13.5px;line-height:1.95;color:var(--ink-2);
}
.cols p{margin:0 0 1em;text-align:justify}
.cols p:last-child{margin-bottom:0}

/* 02 页精简信息行（无虚构文案时用） */
#p2 .lead{font-size:clamp(30px,3.8vw,54px);letter-spacing:.06em;margin:14px 0 30px}
.cols-meta{
  column-count:1;column-rule:none;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 30px;
}
.cols-meta .meta-line{
  margin:0;text-align:left;font-family:var(--serif);
  font-size:clamp(12.5px,1vw,14.5px);letter-spacing:.12em;
  color:var(--ink-2);white-space:nowrap;
}
.cols-meta .meta-line + .meta-line{position:relative;padding-left:30px}
.cols-meta .meta-line + .meta-line::before{
  content:"";position:absolute;left:0;top:50%;
  width:16px;height:1px;background:var(--line);
}

/* ==========================================================
   03 纯文字页
   ========================================================== */
.text-body{
  position:absolute;left:clamp(26px,11vw,168px);top:50%;transform:translateY(-50%);
  max-width:min(660px,74vw);
}
.mark{display:block;width:9px;height:9px;background:var(--red);margin-bottom:34px}
.big-text{
  font-family:var(--serif);font-size:clamp(20px,2.45vw,33px);
  line-height:1.85;margin:0;letter-spacing:.01em;
  opacity:0;transform:translateY(18px);
  transition:opacity 1s var(--ease) .1s,transform 1.2s var(--ease) .1s;
}
.spread.in .big-text{opacity:1;transform:none}
.text-note{
  font-size:13px;line-height:2;color:var(--ink-2);
  margin:2.8em 0 0;max-width:320px;
  opacity:0;transition:opacity 1s var(--ease) .5s;
}
.spread.in .text-note{opacity:1}

/* ==========================================================
   04 照片拼贴
   ========================================================== */
.collage{position:absolute;inset:0;z-index:2}
.cg{
  position:absolute;margin:0;overflow:hidden;
  border:7px solid var(--paper-3);
  box-shadow:9px 9px 0 rgba(20,20,20,.055);
  --r:0deg;
  transform:rotate(var(--r)) translateY(42px);
  opacity:0;
  transition:transform 1.1s var(--ease),opacity .8s var(--ease);
  background:var(--paper-2);
}
.cg img{width:100%;height:100%;object-fit:cover;object-position:center 32%;display:block;transition:transform .6s var(--ease)}
.cg:hover img{transform:scale(1.05)}
.cg::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:0;
  background:linear-gradient(90deg,rgba(255,74,43,.4) 0,rgba(255,74,43,0) 10%,rgba(255,74,43,0) 90%,rgba(43,143,255,.32) 100%);
}
.in .cg::after{animation:misreg .9s var(--ease) forwards}
.cg1{left:6.5%;top:16%;width:29%;height:45%;--r:-3.4deg}
.cg2{left:33%;top:31%;width:25%;height:38%;--r:2.6deg}
.cg3{right:7.5%;top:12%;width:27%;height:47%;--r:-1.8deg}
.cg4{right:19%;bottom:10%;width:24%;height:32%;--r:3.8deg}
.spread.in .cg{transform:rotate(var(--r)) translateY(0);opacity:1}
.spread.in .cg1{transition-delay:.08s}
.spread.in .cg2{transition-delay:.20s}
.spread.in .cg3{transition-delay:.14s}
.spread.in .cg4{transition-delay:.26s}

/* 套色偏移（印刷错位）闪现 */
@keyframes misreg{
  0%{opacity:1;transform:translateX(-7px)}
  45%{opacity:.6;transform:translateX(4px)}
  100%{opacity:0;transform:none}
}

/* ==========================================================
   05 大字跨栏
   ========================================================== */
.giant-word{
  position:absolute;left:43%;top:50%;transform:translate(-50%,-50%);
  margin:0;font-family:var(--serif);font-weight:400;
  font-size:clamp(150px,31vw,360px);line-height:.8;
  letter-spacing:0;color:var(--ink);z-index:1;
}
.giant-photo{
  position:absolute;right:0;top:0;width:52%;height:100%;margin:0;
  z-index:2;overflow:hidden;
}
.giant-photo .ph{width:100%;height:100%;transform:translateX(100%)}
.giant-cap{
  position:absolute;left:var(--pad-x);bottom:9vh;margin:0;z-index:3;
  font-family:var(--serif);font-size:clamp(14px,1.35vw,18px);line-height:1.95;
  color:var(--ink);
  opacity:0;transition:opacity .9s var(--ease) .3s;
}
.spread.in .giant-cap{opacity:1}

/* ==========================================================
   06 影册
   ========================================================== */
.gal-head{display:flex;flex-direction:column;gap:clamp(16px,2.6vh,30px);margin-bottom:clamp(24px,4vh,44px)}
.gal-top{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  border-bottom:1px solid var(--ink);padding-bottom:clamp(10px,1.6vh,16px);
}
.gal-count{
  display:flex;align-items:baseline;gap:3px;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--gray);
}
.gal-count b{
  font-family:var(--sans);font-weight:400;
  font-size:clamp(34px,5vw,62px);line-height:.8;letter-spacing:-.03em;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.gal-note{margin:0;font-size:13px;line-height:2;color:var(--ink-2)}

/* 滚动带 */
.marquee{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-bottom:clamp(20px,3.2vh,36px);
}
.marquee-track{
  display:flex;width:max-content;white-space:nowrap;
  font-family:var(--sans);font-size:10px;letter-spacing:.34em;color:var(--gray);
  padding:11px 0;will-change:transform;
}

/* 瀑布流：按原始比例排，不裁脸 */
.gal{column-count:3;column-gap:clamp(10px,1.5vw,22px)}
.gi{
  break-inside:avoid;margin:0 0 clamp(10px,1.5vw,22px);
  position:relative;display:block;overflow:hidden;background:var(--paper-2);
  opacity:0;transform:translateY(22px);
  transition:opacity .8s var(--ease),transform .9s var(--ease);
  cursor:zoom-in;
}
.gi.in{opacity:1;transform:none;animation:giWipe 1s var(--ease) both}
@keyframes giWipe{
  0%{clip-path:inset(0 0 100% 0)}
  100%{clip-path:inset(0 0 0 0)}
}
.gi img{
  width:100%;height:auto;display:block;
  opacity:0;transition:opacity .55s var(--ease),transform .7s var(--ease);
}
.gi img.ok{opacity:1}
.gi:hover img{transform:scale(1.035)}
.gi::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:0;
  background:linear-gradient(90deg,rgba(255,74,43,.4) 0,rgba(255,74,43,0) 9%,rgba(255,74,43,0) 91%,rgba(43,143,255,.3) 100%);
}
.gi.in::after{animation:misreg .9s var(--ease) forwards}
.gi::before{
  content:"";position:absolute;inset:7px;pointer-events:none;z-index:3;
  opacity:0;transition:opacity .3s var(--ease);
  background:
    linear-gradient(var(--red),var(--red)) 0 0/13px 1px no-repeat,
    linear-gradient(var(--red),var(--red)) 0 0/1px 13px no-repeat,
    linear-gradient(var(--red),var(--red)) 100% 0/13px 1px no-repeat,
    linear-gradient(var(--red),var(--red)) 100% 0/1px 13px no-repeat,
    linear-gradient(var(--red),var(--red)) 0 100%/13px 1px no-repeat,
    linear-gradient(var(--red),var(--red)) 0 100%/1px 13px no-repeat,
    linear-gradient(var(--red),var(--red)) 100% 100%/13px 1px no-repeat,
    linear-gradient(var(--red),var(--red)) 100% 100%/1px 13px no-repeat;
}
.gi:hover::before{opacity:1}
.gi figcaption{
  position:absolute;left:0;bottom:0;z-index:4;
  padding:5px 8px;
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;
  color:var(--paper-3);background:var(--ink);
  opacity:0;transform:translateY(100%);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.gi:hover figcaption{opacity:1;transform:none}

.gal-foot{position:relative;height:34px;margin-top:clamp(10px,2vh,22px)}

/* ==========================================================
   07 封底
   ========================================================== */
.back-body{
  position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);
  width:100%;text-align:center;
}
.back-kick{
  font-family:var(--sans);font-size:11px;letter-spacing:.42em;
  color:var(--gray);margin-bottom:26px;
}
.back-names{font-family:var(--serif);font-size:clamp(36px,5.4vw,76px);letter-spacing:.04em}
.dot{color:var(--red);font-size:.55em;margin:0 .26em;vertical-align:.18em}
.back-date{
  font-family:var(--serif);font-size:clamp(13px,1.15vw,16px);
  letter-spacing:.28em;color:var(--ink-2);margin-top:16px;
}
.seal{
  width:clamp(46px,4.2vw,60px);height:clamp(46px,4.2vw,60px);
  margin:32px auto 0;background:var(--red);color:var(--paper-3);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:clamp(23px,2.3vw,31px);
  border-radius:3px;
  opacity:0;transform:rotate(-16deg) scale(1.55);
  transition:transform .8s cubic-bezier(.18,.86,.28,1) .55s,opacity .4s var(--ease) .55s;
}
.spread.in .seal{opacity:1;transform:rotate(-4deg) scale(1)}

.back-bottom{
  position:absolute;left:var(--pad-x);right:var(--pad-x);bottom:9vh;
  display:flex;align-items:flex-end;gap:14px;z-index:3;
}
.barcode{width:126px;height:38px;flex:0 0 auto}
.barcode i{
  display:block;width:100%;height:100%;
  background:repeating-linear-gradient(90deg,
    var(--ink) 0 1px,transparent 1px 4px,
    var(--ink) 4px 5px,transparent 5px 8px,
    var(--ink) 8px 10px,transparent 10px 13px,
    var(--ink) 13px 14px,transparent 14px 17px);
}
.barcode-txt{
  font-family:var(--mono);font-size:10px;line-height:1.7;letter-spacing:.14em;
  color:var(--ink-2);margin-left:4px;margin-right:auto;
}
.barcode-txt span{font-family:var(--serif);font-size:11px;letter-spacing:.3em}
#tear{
  font-family:var(--sans);font-size:11px;letter-spacing:.22em;
  color:var(--ink);background:none;border:1px solid var(--ink);
  padding:12px 20px;cursor:pointer;border-radius:0;
  transition:background .3s var(--ease),color .3s var(--ease);
}
#tear:hover{background:var(--ink);color:var(--paper)}
#tear:focus-visible{outline:2px solid var(--red);outline-offset:3px}

/* ==========================================================
   响应式
   ========================================================== */
@media (max-width:900px){
  :root{--pad-x:22px;--mh:42px}
  #binder{display:none}
  #rail{right:6px}
  .leaf::after{width:16px}
  .spread{height:auto;min-height:100vh;min-height:100svh;perspective:none}
  .leaf{
    height:auto;min-height:100vh;min-height:100svh;
    display:flex;flex-direction:column;
    transform:translateY(22px);
    overflow:visible;
  }
  .spread.in .leaf{transform:none}
  #p1 .leaf,#p3 .leaf,#p4 .leaf,#p5 .leaf,#p6 .leaf,#p7 .leaf{display:block}

  /* 封面：.cover-years(right:-12%) 与 .cover-photo(scale 1.07) 会横向撑破文档宽度，
     导致整页右侧被裁、固定元素错位。这里只裁水平方向，纵向保持 visible。 */
  #p1 .leaf{overflow-x:clip}

  /* 封面 */
  .cover-names{margin:20px 0 16px}
  .cn-1,.cn-2{font-size:clamp(52px,15vw,88px)}
  .cn-2{margin-left:.42em}
  .cover-years{right:-12%;font-size:clamp(70px,22vw,120px);color:rgba(20,20,20,.06)}
  .cover-veil{background:linear-gradient(100deg,rgba(242,239,233,.95) 0%,rgba(242,239,233,.82) 42%,rgba(242,239,233,.2) 78%,rgba(242,239,233,0) 100%)}
  .cover-foot{font-size:10px;letter-spacing:.14em;bottom:6vh}

  /* 02 上下结构 */
  .half{position:static;width:100%}
  .half-photo{height:44vh;flex:0 0 44vh}
  .half-photo .ph{clip-path:none}
  .half-text{
    position:static;right:auto;width:100%;
    padding:34px 22px 64px;
  }
  .lead{font-size:clamp(20px,5.6vw,26px);margin:14px 0 22px}
  .cols{column-count:1;font-size:13px;line-height:1.9}
  .qmark{display:none}

  /* 03 */
  .text-body{left:22px;right:22px;max-width:none;transform:translateY(-50%);width:auto}
  .big-text{font-size:clamp(19px,5.4vw,26px);line-height:1.8}
  .text-note{max-width:none;margin-top:2em}

  /* 04 改 2×2 网格 */
  .collage{
    position:static;display:grid;grid-template-columns:1fr 1fr;
    gap:10px;padding:calc(var(--mh) + 46px) 18px 58px;
    min-height:100vh;min-height:100svh;align-content:center;
  }
  .cg{position:static;width:auto;height:auto;aspect-ratio:3/4;border-width:4px;box-shadow:4px 4px 0 rgba(20,20,20,.05)}
  .kick-abs{top:calc(var(--mh) + 14px)}

  /* 05 */
  .giant-word{left:50%;font-size:clamp(110px,42vw,190px)}
  .giant-photo{width:100%;height:36%;top:auto;bottom:0}
  .giant-photo .ph{transform:translateX(100%)}
  .giant-cap{left:22px;bottom:calc(36% + 24px);font-size:14px}

  /* 06 影册 */
  .spread.tall .leaf{padding:calc(var(--mh) + 30px) 18px 60px}
  .gal{column-count:2;column-gap:10px}
  .gi{margin-bottom:10px}
  .gal-count b{font-size:36px}

  /* 07 */
  .back-body{top:40%}
  .back-bottom{flex-wrap:wrap;bottom:7vh}
  .barcode{width:96px;height:32px}
}
@media (max-width:520px){
  .mh-sub{display:none}
  .back-bottom .barcode-txt{margin-right:0}
  #tear{width:100%;margin-top:6px}
  .gal{column-gap:6px}
  .gi{margin-bottom:6px}
}

/* ==========================================================
   灯箱
   ========================================================== */
.lb{
  position:fixed;inset:0;z-index:90;display:flex;align-items:center;justify-content:center;
  background:var(--paper);
  opacity:0;pointer-events:none;
  transition:opacity .35s var(--ease);
  cursor:zoom-out;padding:6vh 5vw;
}
.lb.on{opacity:1;pointer-events:auto}
.lb img{
  max-width:100%;max-height:100%;display:block;
  border:8px solid var(--paper-3);
  box-shadow:14px 14px 0 rgba(20,20,20,.07);
  opacity:0;transform:scale(.97);
  transition:opacity .3s var(--ease),transform .45s var(--ease);
}
.lb.on img{opacity:1;transform:none}
.lb-x{
  position:absolute;top:18px;right:22px;
  font-family:var(--sans);font-size:26px;line-height:1;
  background:none;border:none;color:var(--ink);cursor:pointer;padding:8px;
}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:44px;height:44px;border:1px solid var(--line);border-radius:50%;
  background:rgba(251,249,244,.9);color:var(--ink);
  font-family:var(--sans);font-size:15px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .25s var(--ease),border-color .25s var(--ease),color .25s;
}
.lb-nav:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.lb-prev{left:clamp(10px,3vw,42px)}
.lb-next{right:clamp(10px,3vw,42px)}
.lb-idx{
  position:absolute;bottom:18px;left:50%;transform:translateX(-50%);
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--ink-2);
}

/* ---------- 灯箱 · 移动端 ----------
   1) 照片满宽出血，去掉边框与投影，占屏比例从 28% 提升到 ~35%
   2) 左右箭头从左中/右中移到底部，与页码同一行，彻底避开照片
   3) 页码与箭头让出 iPhone 底部安全区                            */
@media (max-width:700px){
  .lb{padding:0}
  .lb img{
    max-width:100%;max-height:72svh;
    border-width:0;box-shadow:none;
  }
  .lb-x{
    top:calc(10px + env(safe-area-inset-top,0px));right:12px;
    font-size:25px;
  }
  .lb-nav{
    top:auto;transform:none;
    width:40px;height:40px;font-size:14px;
    bottom:calc(16px + env(safe-area-inset-bottom,0px));
  }
  .lb-prev{left:calc(50% - 104px)}
  .lb-next{left:calc(50% + 64px);right:auto}
  .lb-idx{
    bottom:calc(30px + env(safe-area-inset-bottom,0px));
    font-size:10px;
  }
}

/* ==========================================================
   无障碍
   ========================================================== */
@media (prefers-reduced-motion:reduce){
  #intro{display:none!important}
  html.intro-lock,html.intro-lock body{overflow:auto!important}
  #cur{display:none!important}
  .leaf{transform:none!important;opacity:1!important;transition:none!important}
  .cn-1,.cn-2{transform:none!important;opacity:1!important;transition:none!important}
  .rule-line{transform:none!important;transition:none!important}
  .big-text,.text-note,.giant-cap,.cg,.seal{
    transform:none!important;opacity:1!important;transition:none!important;
  }
  .gi{clip-path:none!important;transform:none!important;opacity:1!important;transition:none!important;animation:none!important}
  .gi img{opacity:1!important;transition:none!important}
  .gi::after,.cg::after{display:none!important}
  .half-photo .ph{clip-path:none!important}
  .giant-photo .ph{transform:none!important}
  .cover-scan{display:none!important}
  .cover-photo{transform:none!important}
  .marquee-track{transform:none!important}
}