Bootstrap 登陸頁面佈局問題 - 容器無法正確適應螢幕尺寸
我目前正在使用 Bootstrap 建立登陸頁面進行練習。但是，我面臨佈局問題，容器不適合適當的螢幕尺寸。左右兩側不平衡，導致螢幕向左側傾斜。
這是說明問題的螢幕截圖（連結）：文字
我嘗試了各種方法，但未能解決問題。我懷疑這可能是 Bootstrap 中網格系統或容器設定的問題。
有人可以指導我如何排查和修復此佈局問題嗎？任何建議或見解將不勝感激。
此外，以下是一些相關的程式碼片段：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>TinDog</title>
<link href="./css/style.css" rel="stylesheet">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-9ndCyUaIbzAi2FUVXJi0CjmCapSmO7SnpJef0486qhLnuZ2cdeRhO02iuK6FUUVM" crossorigin="anonymous">
</head>
<body>
<!-- Title -->
<section id="title" class="gradient-background">
<div class="container col-xxl-8 pt-5">
<div class="row flex-lg-row-reverse align-items-center">
<div class="col-12 col-sm-8 col-lg-6">
<img src="./images/iphone.png" class="header-img d-block mx-auto img-fluid" alt="Dog on a smartphone" height="200" loading="lazy">
</div>
<div class="col-lg-6">
<h1 class="display-5 fw-bold text-body-emphasis lh-1 mb-3 pt-5 pb-3">Meet new and interesting dogs nearby.</h1>
<div class="d-grid gap-2 d-md-flex justify-content-md-start pb-5">
<button type="button" class="btn btn-light btn-lg px-4 me-md-2">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-apple mb-1" viewBox="0 0 16 16">
<path d="M11.182.008C11.148-.03 9.923.023 8.857 1.18c-1.066 1.156-.902 2.482-.878 2.516.024.034 1.52.087 2.475-1.258.955-1.345.762-2.391.728-2.43Zm3.314 11.733c-.048-.096-2.325-1.234-2.113-3.422.212-2.189 1.675-2.789 1.698-2.854.023-.065-.597-.79-1.254-1.157a3.692 3.692 0 0 0-1.563-.434c-.108-.003-.483-.095-1.254.116-.508.139-1.653.589-1.968.607-.316.018-1.256-.522-2.267-.665-.647-.125-1.333.131-1.824.328-.49.196-1.422.754-2.074 2.237-.652 1.482-.311 3.83-.067 4.56.244.729.625 1.924 1.273 2.796.576.984 1.34 1.667 1.659 1.899.319.232 1.219.386 1.843.067.502-.308 1.408-.485 1.766-.472.357.013 1.061.154 1.782.539.571.197 1.111.115 1.652-.105.541-.221 1.324-1.059 2.238-2.758.347-.79.505-1.217.473-1.282Z"/>
<path d="M11.182.008C11.148-.03 9.923.023 8.857 1.18c-1.066 1.156-.902 2.482-.878 2.516.024.034 1.52.087 2.475-1.258.955-1.345.762-2.391.728-2.43Zm3.314 11.733c-.048-.096-2.325-1.234-2.113-3.422.212-2.189 1.675-2.789 1.698-2.854.023-.065-.597-.79-1.254-1.157a3.692 3.692 0 0 0-1.563-.434c-.108-.003-.483-.095-1.254.116-.508.139-1.653.589-1.968.607-.316.018-1.256-.522-2.267-.665-.647-.125-1.333.131-1.824.328-.49.196-1.422.754-2.074 2.237-.652 1.482-.311 3.83-.067 4.56.244.729.625 1.924 1.273 2.796.576.984 1.34 1.667 1.659 1.899.319.232 1.219.386 1.843.067.502-.308 1.408-.485 1.766-.472.357.013 1.061.154 1.782.539.571.197 1.111.115 1.652-.105.541-.221 1.324-1.059 2.238-2.758.347-.79.505-1.217.473-1.282Z"/>
</svg>
Download
</button>
<button type="button" class="btn btn-outline-light btn-lg px-4">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-google-play mb-1" viewBox="0 0 16 16">
<path d="M14.222 9.374c1.037-.61 1.037-2.137 0-2.748L11.528 5.04 8.32 8l3.207 2.96 2.694-1.586Zm-3.595 2.116L7.583 8.68 1.03 14.73c.201 1.029 1.36 1.61 2.303 1.055l7.294-4.295ZM1 13.396V2.603L6.846 8 1 13.396ZM1.03 1.27l6.553 6.05 3.044-2.81L3.333.215C2.39-.341 1.231.24 1.03 1.27Z"/>
</svg>
Download
</button>
</div>
</div>
</div>
</div>
</section>
<!-- Features -->
<section id="features">
<div class="row g-4 py-5 row-cols-1 row-cols-lg-3 px-4">
<div class="col d-flex align-items-start py-4">
<div class="icon-square text-body-emphasis bg-body-secondary d-inline-flex align-items-center justify-content-center fs-4 flex-shrink-0 me-3">
<svg xmlns="http://www.w3.org/2000/svg" height="30" fill="currentColor" class="bi bi-check2-circle"
viewBox="0 0 16 16">
<path d="M2.5 8a5.5 5.5 0 0 1 8.25-4.764.5.5 0 0 0 .5-.866A6.5 6.5 0 1 0 14.5 8a.5.5 0 0 0-1 0 5.5 5.5 0 1 1-11 0z" />
<path d="M15.354 3.354a.5.5 0 0 0-.708-.708L8 9.293 5.354 6.646a.5.5 0 1 0-.708.708l3 3a.5.5 0 0 0 .708 0l7-7z" />
</svg>
</div>
<div>
<h3 class="fs-2 text-body-emphasis">Featured title</h3>
<p>Paragraph of text beneath the heading to explain the heading. We'll add onto it with another sentence and probably just keep going until we run out of words.</p>
</div>
</div>
<div class="col d-flex align-items-start py-4">
<div class="icon-square text-body-emphasis bg-body-secondary d-inline-flex align-items-center justify-content-center fs-4 flex-shrink-0 me-3">
<svg xmlns="http://www.w3.org/2000/svg" height="30" fill="currentColor" class="bi bi-mortarboard" viewBox="0 0 16 16">
<path d="M8.211 2.047a.5.5 0 0 0-.422 0l-7.5 3.5a.5.5 0 0 0 .025.917l7.5 3a.5.5 0 0 0 .372 0L14 7.14V13a1 1 0 0 0-1 1v2h3v-2a1 1 0 0 0-1-1V6.739l.686-.275a.5.5 0 0 0 .025-.917l-7.5-3.5ZM8 8.46 1.758 5.965 8 3.052l6.242 2.913L8 8.46Z"/>
<path d="M4.176 9.032a.5.5 0 0 0-.656.327l-.5 1.7a.5.5 0 0 0 .294.605l4.5 1.8a.5.5 0 0 0 .372 0l4.5-1.8a.5.5 0 0 0 .294-.605l-.5-1.7a.5.5 0 0 0-.656-.327L8 10.466 4.176 9.032Zm-.068 1.873.22-.748 3.496 1.311a.5.5 0 0 0 .352 0l3.496-1.311.22.748L8 12.46l-3.892-1.556Z"/>
</svg>
</div>
<div>
<h3 class="fs-2 text-body-emphasis">Featured title</h3>
<p>Paragraph of text beneath the heading to explain the heading. We'll add onto it with another sentence and probably just keep going until we run out of words.</p>
</div>
</div>
<div class="col d-flex align-items-start py-4">
<div class="icon-square text-body-emphasis bg-body-secondary d-inline-flex align-items-center justify-content-center fs-4 flex-shrink-0 me-3">
<svg xmlns="http://www.w3.org/2000/svg" height="30" fill="currentColor" class="bi bi-arrow-through-heart"
viewBox="0 0 16 16">
<path fill-rule="evenodd"
d="M2.854 15.854A.5.5 0 0 1 2 15.5V14H.5a.5.5 0 0 1-.354-.854l1.5-1.5A.5.5 0 0 1 2 11.5h1.793l.53-.53c-.771-.802-1.328-1.58-1.704-2.32-.798-1.575-.775-2.996-.213-4.092C3.426 2.565 6.18 1.809 8 3.233c1.25-.98 2.944-.928 4.212-.152L13.292 2 12.147.854A.5.5 0 0 1 12.5 0h3a.5.5 0 0 1 .5.5v3a.5.5 0 0 1-.854.354L14 2.707l-1.006 1.006c.236.248.44.531.6.845.562 1.096.585 2.517-.213 4.092-.793 1.563-2.395 3.288-5.105 5.08L8 13.912l-.276-.182a21.86 21.86 0 0 1-2.685-2.062l-.539.54V14a.5.5 0 0 1-.146.354l-1.5 1.5Zm2.893-4.894A20.419 20.419 0 0 0 8 12.71c2.456-1.666 3.827-3.207 4.489-4.512.679-1.34.607-2.42.215-3.185-.817-1.595-3.087-2.054-4.346-.761L8 4.62l-.358-.368c-1.259-1.293-3.53-.834-4.346.761-.392.766-.464 1.845.215 3.185.323.636.815 1.33 1.519 2.065l1.866-1.867a.5.5 0 1 1 .708.708L5.747 10.96Z" />
</svg>
</div>
<div>
<h3 class="fs-2 text-body-emphasis">Featured title</h3>
<p>Paragraph of text beneath the heading to explain the heading. We'll add onto it with another sentence and probably just keep going until we run out of words.</p>
</div>
</div>
</div>
</section>
<!-- Testimonial -->
<section id="testimonial">
<div class="mb-4 bg-body-tertiary rounded-3">
<div class="container-fluid py-5 d-flex flex-column align-items-center">
<h2 class="fs-2 text-center pt-4">"I no longer have to sniff other dogs for love. I've found the hottest Corgi on TinDog. Woof."</h2>
<img class="profile-img mt-5" src="./images/dog-img.jpg" alt="dog image">
<p class="mt-2 mx-auto">Pebbles, New York</p>
<div class="container pt-5">
<div class="row">
<div class="col-lg-3 col-sm-12 d-flex flex-column align-items-center">
<img src="./images/techcrunch.png" alt="TechCrunch" height="30">
</div>
<div class="col-lg-3 col-sm-12 d-flex flex-column align-items-center">
<img src="./images/mashable.png" alt="Mashable" height="30">
</div>
<div class="col-lg-3 col-sm-12 d-flex flex-column align-items-center">
<img src="./images/bizinsider.png" alt="Business Insider" height="40">
</div>
<div class="col-lg-3 col-sm-12 d-flex flex-column align-items-center">
<img src="./images/tnw.png" alt="TNW" height="38">
</div>
</div>
</div>
</div>
</div>
</section>
<!-- Pricing -->
<section id="pricing">
<div class="container py-3">
<header>
<div class="pricing-header p-3 pb-md-4 mx-auto text-center">
<h2 class="display-4 fw-normal text-body-emphasis">A Plan for Every Dog's Needs</h2>
<p class="fs-5 text-body-secondary">Simple and affordable price plans for you and your dog.</p>
</div>
</header>
<main>
<div class="row row-cols-1 row-cols-md-3 mb-3 text-center">
<div class="col">
<div class="card mb-4 rounded-3 shadow-sm">
<div class="card-header py-3">
<h3 class="my-0 fw-normal">Chihuahua</h3>
</div>
<div class="card-body">
<p class="card-title pricing-card-title fs-1">rrreee<small class="text-body-secondary fw-light">/mo</small></p>
<ul class="list-unstyled mt-3 mb-4">
<li>5 Matches Per Day</li>
<li>10 Messages Per Day</li>
<li>Unlimited App Usage</li>
</ul>
<button type="button" class="w-100 btn btn-lg btn-outline-primary">Sign up for free</button>
</div>
</div>
</div>
<div class="col">
<div class="card mb-4 rounded-3 shadow-sm">
<div class="card-header py-3">
<h3 class="my-0 fw-normal">Labrador</h3>
</div>
<div class="card-body">
<h1 class="card-title pricing-card-title"><small class="text-body-secondary fw-light">/mo</small></h1>
<ul class="list-unstyled mt-3 mb-4">
<li>Unlimited Matches</li>
<li>Unlimited Messages</li>
<li>Unlimited App Usage</li>
</ul>
<button type="button" class="w-100 btn btn-lg btn-dark">Get started</button>
</div>
</div>
</div>
<div class="col">
<div class="card mb-4 rounded-3 shadow-sm border-primary">
<div class="card-header py-3 text-bg-dark border-primary">
<h3 class="my-0 fw-normal">Mastiff</h3>
</div>
<div class="card-body">
<h1 class="card-title pricing-card-title"><small class="text-body-secondary fw-light">/mo</small></h1>
<ul class="list-unstyled mt-3 mb-4">
<li>Pirority Listing</li>
<li>Unlimited Matches & Messages</li>
<li>Unlimited App Usage</li>
</ul>
<button type="button" class="w-100 btn btn-lg btn-dark">Contact us</button>
</div>
</div>
</div>
</div>
</main>
</div>
</section>
<!-- Footer -->
<section id="footer" class="gradient-background">
<div class="container">
<footer class="row row-cols-1 row-cols-sm-2 row-cols-md-5 py-2 pt-4">
<div class="col mb-3">
<a href="/" class="d-flex align-items-center mb-3 link-body-emphasis text-decoration-none">
<svg class="bi me-2" width="40" height="32"><use xlink:href="#bootstrap"></use></svg>
</a>
<p class="text-body-secondary">© TinDog</p>
</div>
<div class="col mb-3">
</div>
<div class="col mb-3">
<h5>Section</h5>
<ul class="nav flex-column">
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">Home</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">Features</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">Pricing</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">FAQs</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">About</a></li>
</ul>
</div>
<div class="col mb-3">
<h5>Section</h5>
<ul class="nav flex-column">
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">Home</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">Features</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">Pricing</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">FAQs</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">About</a></li>
</ul>
</div>
<div class="col mb-3">
<h5>Section</h5>
<ul class="nav flex-column">
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">Home</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">Features</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">Pricing</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">FAQs</a></li>
<li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-body-secondary">About</a></li>
</ul>
</div>
</footer>
</div>
</section>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-geWF76RCwLtnZ8qwWowPQNguL3RmwHVBC9FhGdlKrxdiJJigb/j/68SIy3Te4Bkz" crossorigin="anonymous"></script>
</body>
</html>
我也檢查了容器語法、邊距和填充。但我實在不明白這有什麼問題..
我真的很感謝你的幫助，這對我這個新手有很大幫助。
提前致謝！ ！
