/* ============================================================
   中国医药文化网 · 新版视觉体系
   纸(paper) · 墨(ink) · 印(seal) —— 编辑式瑞士网格 + 本草纸墨色系
   ============================================================ */

:root {
  /* 纸：暖米白（ aged paper ） */
  --paper:        #F2EFDD;
  --paper-light:  #F8F6EA;
  --paper-deep:   #E7E3CE;
  /* 墨：深林绿 */
  --ink:          #064013;
  --ink-2:        #2E5A3C;
  --ink-3:        #5E7A66;
  --ink-4:        #8FA393;
  /* 印：朱砂红（克制使用） */
  --seal:         #DB3356;
  --seal-deep:    #B81F42;
  /* 线 */
  --line:         rgba(6, 64, 19, .28);
  --line-soft:    rgba(6, 64, 19, .14);
  /* 字 */
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans:  -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  /* 栅格 */
  --maxw: 1280px;
  --gutter: clamp(20px, 4vw, 56px);
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--ink); color: var(--paper-light); }

/* 细滚动条 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--ink-4); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-3); }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
li{list-style:none;}
button { font-family: inherit; cursor: pointer; background: none; border: 0; color: inherit; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

/* ------------------------------------------------------------
   顶部信息条
   ------------------------------------------------------------ */
.topbar {
  border-bottom: 1px solid var(--line-soft);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-3);
}
.topbar .wrap {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 7px; padding-bottom: 7px;
}
.topbar .tb-right { display: flex; gap: 18px; align-items: center; }
.topbar a { transition: color .3s var(--ease); }
.topbar a:hover { color: var(--seal); }
.topbar .tb-en { text-transform: uppercase; letter-spacing: .18em; font-size: 10px; }

/* ------------------------------------------------------------
   刊头 Masthead
   ------------------------------------------------------------ */
.masthead { border-bottom: 1px solid var(--line); }
.masthead .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; padding-top: 30px; padding-bottom: 26px;
}
.brand { display: flex; align-items: center; gap: 20px; }
.brand-title .cn {
  font-size: clamp(26px, 3.4vw, 40px); font-weight: 900;
  letter-spacing: .14em; line-height: 1.1;
}
.brand-title .en {
  margin-top: 6px; font-family: var(--sans);
  font-size: 10px; letter-spacing: .34em; text-transform: uppercase;
  color: var(--ink-3);
}

/* ------------------------------------------------------------
   主导航 —— 中文 + 英文小标，下划线动效
   ------------------------------------------------------------ */
.mainnav {
  position: sticky; top: 0; z-index: 60;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.mainnav .wrap { display: flex; align-items: stretch; }
.nav-list { display: flex; flex-wrap: wrap; }
.nav-item {
  position: relative; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 1px;
  padding: 13px clamp(12px, 1.6vw, 22px) 11px;
  font-size: 15px; letter-spacing: .12em; font-weight: 500;
  transition: color .3s var(--ease);
}
.nav-item .en {
  font-size: 8.5px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--ink-4); font-weight: 400; transform: scale(.92);
}
.nav-item::after {
  content: ""; position: absolute; left: 18%; right: 18%; bottom: 0;
  height: 2px; background: var(--seal);
  transform: scaleX(0); transform-origin: left;
  transition: transform .45s var(--ease);
}
.nav-item:hover { color: var(--seal); }
.nav-item:hover .en { color: var(--seal); }
.nav-item:hover::after, .nav-item.active::after { transform: scaleX(1); }
.nav-item.active { color: var(--seal); }

/* ------------------------------------------------------------
   区块通用
   ------------------------------------------------------------ */
.section { padding: clamp(48px, 6vw, 88px) 0; }
.section + .section { border-top: 1px solid var(--line-soft); }
.section.deep {
  background: var(--ink); color: var(--paper);
}
.section.deep .sec-label, .section.deep .sec-more { color: rgba(242,239,221,.6); }
.section.sage { background: var(--paper-deep); }

.sec-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px; margin-bottom: clamp(28px, 3.5vw, 46px);
}
.sec-label {
  font-size: 11px; letter-spacing: .3em; text-transform: uppercase;
  color: var(--ink-3); display: block; margin-bottom: 10px;
}
.sec-title {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(26px, 3vw, 38px); letter-spacing: .1em; line-height: 1.15;
  display: flex; align-items: baseline; gap: 16px;
}
.sec-title .no {
  font-family: var(--sans); font-size: 12px; letter-spacing: .2em;
  color: var(--seal); font-weight: 500;
}
.sec-more {
  flex: none; font-size: 13px; letter-spacing: .15em; color: var(--ink-3);
  border-bottom: 1px solid var(--line); padding-bottom: 3px;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.sec-more:hover { color: var(--seal); border-color: var(--seal); }
.sec-more .arrow { display: inline-block; transition: transform .35s var(--ease); }
.sec-more:hover .arrow { transform: translateX(5px); }

/* ------------------------------------------------------------
   首屏轮播 —— 交叉淡入 + 分数页码
   ------------------------------------------------------------ */
.hero { position: relative; overflow: hidden; background: var(--ink); }
.hero-track { position: relative; height: clamp(420px, 56vw, 620px); }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; visibility: hidden;
  transition: opacity 1s var(--ease), visibility 0s 1s;
}
.hero-slide.on { opacity: 1; visibility: visible; transition: opacity 1s var(--ease); }
.hero-slide img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.06); transition: transform 6s var(--ease);
}
.hero-slide.on img { transform: scale(1); }
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(6,64,19,.82) 0%, rgba(6,64,19,.45) 42%, rgba(6,64,19,.05) 75%);
}
.hero-caption {
  position: absolute; inset: 0; z-index: 2;
  display: flex; flex-direction: column; justify-content: center;
  color: var(--paper-light); pointer-events: none;
}
.hero-caption .kicker {
  font-size: 12px; letter-spacing: .4em; text-transform: uppercase;
  color: rgba(248,246,234,.75); margin-bottom: 18px;
  display: flex; align-items: center; gap: 14px;
}
.hero-caption .kicker::before { content: ""; width: 42px; height: 1px; background: var(--seal); }
.hero-caption h1 {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(30px, 4.6vw, 56px); line-height: 1.2; letter-spacing: .08em;
  max-width: 15em;
}
.hero-caption p {
  margin-top: 18px; max-width: 34em; font-size: 15px;
  color: rgba(248,246,234,.85); letter-spacing: .05em;
}
.hero-caption .hero-link {
  pointer-events: auto; margin-top: 30px; align-self: flex-start;
  border: 1px solid rgba(248,246,234,.7); padding: 11px 30px;
  font-size: 13px; letter-spacing: .28em;
  transition: all .35s var(--ease);
}
.hero-caption .hero-link:hover { background: var(--seal); border-color: var(--seal); }
.hero-ctrl {
  position: absolute; z-index: 3; left: var(--gutter); bottom: 26px;
  display: flex; align-items: center; gap: 20px; color: var(--paper-light);
}
.hero-frac { font-family: var(--serif); font-size: 14px; letter-spacing: .2em; }
.hero-frac .cur { font-size: 26px; color: #fff; }
.hero-frac .sep { margin: 0 8px; opacity: .5; }
.hero-bar { width: clamp(90px, 14vw, 180px); height: 1px; background: rgba(248,246,234,.35); position: relative; overflow: hidden; }
.hero-bar i { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--seal); }
.hero-dots { position: absolute; z-index: 3; right: var(--gutter); bottom: 30px; display: flex; gap: 10px; }
.hero-dots button { width: 26px; height: 2px; background: rgba(248,246,234,.35); transition: background .3s; }
.hero-dots button.on { background: var(--seal); }

/* ------------------------------------------------------------
   快讯条
   ------------------------------------------------------------ */
.ticker {
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 0;
  background: var(--paper-light);
}
.ticker .wrap { display: flex; align-items: center; gap: 26px; padding-top: 0; padding-bottom: 0; }
.ticker-label {
  flex: none; display: flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: .3em; color: var(--seal);
  padding: 14px 0; font-weight: 600;
}
.ticker-label i { width: 7px; height: 7px; background: var(--seal); border-radius: 50%; animation: pulse 1.8s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .25; } }
.ticker-body { overflow: hidden; flex: 1; }
.ticker-item { display: block; padding: 13px 0; font-size: 14px; letter-spacing: .04em; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ticker-item:hover { color: var(--seal); }
.ticker-item time { color: var(--ink-4); font-size: 12px; margin-right: 12px; letter-spacing: .1em; }

/* ------------------------------------------------------------
   新闻中心（首页）—— 75/25 不对称
   ------------------------------------------------------------ */
.news-grid { display: grid; grid-template-columns: 3fr 1fr; gap: clamp(28px, 4vw, 64px); }
.news-feature { border-bottom: 1px solid var(--line); padding-bottom: 26px; margin-bottom: 26px; }
.news-feature .ph { overflow: hidden; margin-bottom: 22px; }
.news-feature img { width: 100%; aspect-ratio: 16/8; object-fit: cover; filter: grayscale(22%); transition: filter .5s var(--ease), transform .8s var(--ease); }
.news-feature:hover img { filter: grayscale(0); transform: scale(1.025); }
.news-feature .tag { font-size: 11px; letter-spacing: .28em; color: var(--seal); text-transform: uppercase; }
.news-feature h3 { font-family: var(--serif); font-size: clamp(21px, 2.2vw, 28px); font-weight: 900; line-height: 1.4; letter-spacing: .03em; margin: 12px 0 10px; transition: color .3s; }
.news-feature:hover h3 { color: var(--seal-deep); }
.news-feature p { color: var(--ink-2); font-size: 14.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-feature time { display: block; margin-top: 12px; font-size: 12px; color: var(--ink-4); letter-spacing: .14em; }
.news-list li { border-bottom: 1px solid var(--line-soft); }
.news-list a {
  display: flex; gap: 18px; align-items: baseline; padding: 15px 0;
  transition: transform .35s var(--ease);
}
.news-list a:hover { transform: translateX(6px); }
.news-list a:hover h4 { color: var(--seal-deep); }
.news-list .n { font-family: var(--serif); font-size: 13px; color: var(--ink-4); flex: none; width: 24px; }
.news-list h4 { font-size: 15.5px; font-weight: 600; letter-spacing: .02em; line-height: 1.6; transition: color .3s; }
.news-list time { margin-left: auto; flex: none; font-size: 12px; color: var(--ink-4); letter-spacing: .08em; }

.side-box { border-left: 1px solid var(--line); padding-left: clamp(20px, 2.4vw, 36px); }
.side-box + .side-box { margin-top: 40px; padding-top: 40px; border-top: 1px solid var(--line-soft); }
.side-title { font-family: var(--serif); font-size: 19px; font-weight: 900; letter-spacing: .14em; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.side-title::before { content: ""; width: 8px; height: 8px; background: var(--seal); }
.side-box ul li a {
  display: block; padding: 10px 0; font-size: 14px; color: var(--ink-2);
  border-bottom: 1px dashed var(--line-soft); line-height: 1.6;
  transition: color .3s, padding-left .35s var(--ease);
}
.side-box ul li a:hover { color: var(--seal); padding-left: 6px; }
.side-box ul li:last-child a { border-bottom: 0; }

/* 侧栏：会员图书（2×2 网格） */
.book-mini-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 26px; }
.book-mini-list li a {
  display: flex; flex-direction: column; align-items: flex-start; gap: 12px;
  padding: 14px 0; border-bottom: 1px dashed var(--line-soft);
}
.book-mini-list li:nth-last-child(-n+2) a { border-bottom: 0; }
.bm {
  flex: none; width: 56px; height: 76px;
  display: grid; place-items: center; position: relative;
  box-shadow: 3px 3px 0 rgba(6, 64, 19, .16);
  transition: transform .35s var(--ease);
}
.bm::before { content: ""; position: absolute; inset: 4px; border: 1px solid rgba(248, 246, 234, .4); }
.bm::after { content: ""; position: absolute; left: 6px; top: 0; bottom: 0; width: 1px; background: rgba(248, 246, 234, .35); }
.bm i { font-style: normal; font-family: var(--serif); font-weight: 900; font-size: 21px; color: var(--paper-light); }
.book-mini-list li a:hover .bm { transform: translateY(-3px); }
.bm.b1 { background: #0A4A1C; }
.bm.b2 { background: #7A2E1D; }
.bm.b3 { background: #1D3A5F; }
.bm.b4 { background: #6B5320; }
.bm-info b { display: block; font-size: 14.5px; font-weight: 600; letter-spacing: .04em; line-height: 1.5; color: var(--ink); transition: color .3s; }
.book-mini-list li a:hover .bm-info b { color: var(--seal-deep); }
.bm-info em { display: block; font-style: normal; font-size: 11.5px; color: var(--ink-4); letter-spacing: .12em; margin-top: 3px; }

/* ------------------------------------------------------------
   分会专题横幅（深墨绿带）
   ------------------------------------------------------------ */
.branch-band { position: relative; overflow: hidden; }
.branch-band .wrap { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(30px,5vw,80px); align-items: center; }

/* ------------------------------------------------------------
   科普园地 —— Tab + 卡片
   ------------------------------------------------------------ */
.kepu-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--line); margin-bottom: 34px; overflow-x: auto; }
.kepu-tabs button {
  padding: 12px 26px; font-size: 15px; letter-spacing: .14em; color: var(--ink-3);
  border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap;
  transition: color .3s, border-color .3s;
}
.kepu-tabs button.on { color: var(--ink); border-color: var(--seal); font-weight: 600; }
.kepu-tabs button:hover { color: var(--seal); }
.kepu-panel { display: none; }
.kepu-panel.on { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 3vw, 44px); animation: fadeUp .6s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.kp-card .ph { overflow: hidden; position: relative; aspect-ratio: 4/3; background: var(--paper-deep); margin-bottom: 16px; }
.kp-card .ph img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(25%); transition: filter .5s var(--ease), transform .8s var(--ease); }
.kp-card:hover .ph img { filter: grayscale(0); transform: scale(1.04); }
.kp-card .ph .txt-ph {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--serif); font-size: 56px; color: var(--ink-3); font-weight: 900;
}
.kp-card .tag { font-size: 11px; letter-spacing: .26em; color: var(--seal); }
.kp-card h3 { font-family: var(--serif); font-size: 19px; font-weight: 700; line-height: 1.55; margin: 8px 0 6px; transition: color .3s; }
.kp-card:hover h3 { color: var(--seal-deep); }
.kp-card p { font-size: 13.5px; color: var(--ink-3); line-height: 1.75; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ------------------------------------------------------------
   专家团队 —— 印章式专家墙
   ------------------------------------------------------------ */
.expert-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.expert-card .role { margin-top: 8px; font-size: 12.5px; color: var(--ink-3); line-height: 1.7; min-height: 3.4em; }
.expert-card .field { margin-top: 10px; display: inline-block; font-size: 11px; letter-spacing: .2em; color: var(--ink-4); border-top: 1px solid var(--line-soft); padding-top: 10px; }
.expert-join .role { color: var(--ink-4); }

/* ------------------------------------------------------------
   培训中心（首页预览 + 内页）
   ------------------------------------------------------------ */
.train-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4vw, 64px); align-items: stretch; }

/* ------------------------------------------------------------
   文化传承
   ------------------------------------------------------------ */
.culture-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(28px, 4vw, 64px); align-items: center; }

/* ------------------------------------------------------------
   会员服务
   ------------------------------------------------------------ */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }

/* ------------------------------------------------------------
   内页：页头横幅
   ------------------------------------------------------------ */
.pagehead { border-bottom: 1px solid var(--line); padding: clamp(40px, 5vw, 72px) 0 clamp(28px, 3.4vw, 48px); position: relative; }
.pagehead .crumb { font-size: 12px; letter-spacing: .18em; color: var(--ink-4); margin-bottom: 16px; }
.pagehead .crumb a:hover { color: var(--seal); }

/* 内页文章列表 */
.article-list li { border-bottom: 1px solid var(--line-soft); }

/* 两栏正文 */
.prose-grid { display: grid; grid-template-columns: 3fr 1fr; gap: clamp(30px, 4vw, 70px); }

/* 步骤条（申请入会） */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); margin: 30px 0; }

/* ------------------------------------------------------------
   页脚
   ------------------------------------------------------------ */
.footer { background: var(--ink); color: rgba(242,239,221,.78); margin-top: clamp(48px, 6vw, 88px); }
.footer .ft-main { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: clamp(28px, 4vw, 60px); padding: clamp(44px, 5vw, 70px) 0; }
.footer h4 { font-family: var(--serif); color: var(--paper); font-size: 16px; font-weight: 900; letter-spacing: .2em; margin-bottom: 18px; }
.footer .ft-brand .cn { font-family: var(--serif); font-size: 26px; font-weight: 900; color: var(--paper); letter-spacing: .16em; }
.footer .ft-brand .en { font-size: 9.5px; letter-spacing: .3em; text-transform: uppercase; color: rgba(242,239,221,.5); margin: 8px 0 18px; }
.footer .ft-brand p { font-size: 13px; line-height: 2; }
.footer ul li { border-bottom: 1px solid rgba(242,239,221,.12); }
.footer ul li a, .footer ul li span { display: block; padding: 9px 0; font-size: 13px; transition: color .3s, padding-left .3s var(--ease); }
.footer ul li a:hover { color: #fff; padding-left: 6px; }
.footer .ft-contact li { padding: 6px 0; font-size: 13px; line-height: 1.9; }
.footer .ft-contact b { color: var(--paper); font-weight: 500; margin-right: 8px; }
.footer .ft-links { border-top: 1px solid rgba(242,239,221,.16); padding: 18px 0; font-size: 12px; display: flex; flex-wrap: wrap; gap: 8px 26px; color: rgba(242,239,221,.55); }
.footer .ft-links a:hover { color: #fff; }
.footer .ft-copy { border-top: 1px solid rgba(242,239,221,.16); padding: 16px 0 22px; font-size: 12px; color: rgba(242,239,221,.45); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; letter-spacing: .05em; }

/* ------------------------------------------------------------
   动效：进场
   ------------------------------------------------------------ */
.rv { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1; transform: none; transition: none; }
  .hero-slide img { transition: none; transform: none; }}

/* ------------------------------------------------------------
   响应式
   ------------------------------------------------------------ */
@media (max-width: 1024px) {
  .expert-grid { grid-template-columns: repeat(3, 1fr); }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .kepu-panel.on { grid-template-columns: repeat(2, 1fr); }
  .news-grid, .train-grid, .culture-grid, .prose-grid, .branch-band .wrap { grid-template-columns: 1fr; }
  .side-box { border-left: 0; padding-left: 0; }
  .brand-sub { display: none; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(2) { border-right: 0; }
  .step:nth-child(1), .step:nth-child(2) { border-bottom: 1px solid var(--line-soft); }
  .footer .ft-main { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .masthead .wrap { flex-direction: column; align-items: flex-start; gap: 18px; padding-top: 22px; padding-bottom: 20px; }
  .mainnav .wrap { padding: 0; }
  .nav-list { display: none; width: 100%; flex-direction: column; }
  .nav-list.open { display: flex; }
  .nav-item { flex-direction: row; justify-content: flex-start; gap: 12px; padding: 13px var(--gutter); border-top: 1px solid var(--line-soft); }
  .nav-item .en { transform: none; }
  .hero-track { height: 68vw; min-height: 340px; }
  .hero-caption h1 { font-size: clamp(24px, 6.4vw, 34px); }
  .hero-caption p { display: none; }
  .kepu-panel.on { grid-template-columns: 1fr; }
  .footer .ft-main { grid-template-columns: 1fr; }
  .topbar .tb-en { display: none; }}

/* ------------------------------------------------------------
   文章详情页
   ------------------------------------------------------------ */
.article-wrap { max-width: 860px; padding-top: clamp(36px, 4.5vw, 64px); }
.article-head .crumb { font-size: 12px; letter-spacing: .14em; color: var(--ink-4); margin-bottom: 22px; }
.article-head .crumb a:hover { color: var(--seal); }
.art-tag {
  display: inline-block; font-size: 11px; letter-spacing: .24em; color: var(--seal);
  border: 1px solid rgba(219,51,86,.45); padding: 4px 14px; margin-bottom: 16px;
}
.art-meta {
  margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px 28px;
  font-size: 12.5px; color: var(--ink-4); letter-spacing: .08em;
}
.art-back { display: inline-block; border: 1px solid var(--ink); padding: 11px 30px; font-size: 13px; letter-spacing: .24em; transition: all .3s var(--ease); }
.art-back:hover { background: var(--ink); color: var(--paper-light); }